JPH10258642A - Electric wheel drive device provided with plural electric motors - Google Patents

Electric wheel drive device provided with plural electric motors

Info

Publication number
JPH10258642A
JPH10258642A JP10057127A JP5712798A JPH10258642A JP H10258642 A JPH10258642 A JP H10258642A JP 10057127 A JP10057127 A JP 10057127A JP 5712798 A JP5712798 A JP 5712798A JP H10258642 A JPH10258642 A JP H10258642A
Authority
JP
Japan
Prior art keywords
brake
wheel drive
electric
electric wheel
gear set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10057127A
Other languages
Japanese (ja)
Inventor
Uenal Gazyakan
ユーナル、ガツィヤカン
Michael Roske
ミヒャエル、ロスケ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of JPH10258642A publication Critical patent/JPH10258642A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/003—Disposition of motor in, or adjacent to, traction wheel with two or more motors driving a single wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Braking Arrangements (AREA)
  • Motor Power Transmission Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent narrowing of the passage width in the floor of a low floor bus at the height of a wheel by constituting an electric wheel drive device extremely short. SOLUTION: In an electric wheel drive device, the drive output of plural electric motors 1 are gathered by a spur gear collection gear device 2 and a drive moment is fitted with the number of a wheel rotation by the planet gear device 3 placed on a rear part. A wheel bearing 4 is arranged between the 'electric motor 1 and the planet gear device 3 in an axis direction. A brake 7 is constituted by a pneumatic or hydraulic disc brake or wet type multiplate brake and is operated as an ordinary use brake, parking brake and an emergency or auxiliary brake.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、複数の電気モータ
を備えた電気式車輪駆動装置であって、複数の電気モー
タの駆動出力が１つの平歯車集合歯車装置によって集合
され、後置の遊星歯車装置が駆動モーメント及び車輪回
転数を適合させる形式のものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wheel drive device provided with a plurality of electric motors, wherein drive outputs of the plurality of electric motors are gathered by one spur gear set gear device, and a rear planetary gear is provided. The present invention relates to a gear device in which a driving moment and a wheel rotation speed are adapted.

【０００２】[0002]

【従来の技術】遊星歯車装置を後続させた電気式の車輪
駆動装置は公知であり、ドイツ国特許第２６３０２０６
号明細書にこのような単輪駆動装置の例が記載されてい
る。2. Description of the Related Art An electric wheel drive followed by a planetary gear train is known and is known from DE 2630206.
The specification describes an example of such a single-wheel drive device.

【０００３】この種の電気式車輪駆動装置は例えば近郊
バスに採用できる。このような駆動装置の場合、軸駆動
装置及び差動装置のための通例の車軸管が不要なので、
バスを極めて低い床面高さのものにすることができる。
電気式車輪駆動装置を備えた低床バスに関する従来の駆
動コンセプトにあっては電気モータの大きな軸方向寸法
が難点として挙げられる。というのは、電気モータが車
輪の高さでのバスの床内の通路を狭くするからである。[0003] This type of electric wheel drive device can be used, for example, in a suburban bus. Such a drive does not require a conventional axle tube for the shaft drive and the differential, so
The bus can be of very low floor height.
The disadvantage of the conventional drive concept for low-floor buses with electric wheel drives is the large axial dimension of the electric motor. This is because the electric motor narrows the passage in the floor of the bus at wheel level.

【０００４】[0004]

【発明が解決しようとする課題】本発明の課題は、電気
式車輪駆動装置を極めて短く構成して、車輪の高さでの
低床バスの床内の通路幅がほとんど狭くならないように
することである。SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric wheel drive system which is designed to be very short so that the width of the passage in the floor of a low-floor bus at the wheel height is hardly reduced. It is.

【０００５】[0005]

【課題を解決するための手段】本発明は、このような課
題を、冒頭に述べた形式の電気式車輪駆動装置において
特許請求の範囲の請求項１に記載の特徴事項による構成
によって解決した。The object of the invention is achieved by an electric wheel drive of the type mentioned at the outset by means of the characterizing features of claim 1.

【０００６】本発明の場合、いわば１つの大型の電気モ
ータの駆動出力が複数の比較的小さな出力に分割され
る。個々の駆動出力は１つの平歯車集合歯車装置によっ
て集合される。個々の比較的小型の電気モータは相応に
小さな軸方向長さを有しており、これにより全駆動ユニ
ットもバスの車室内への方向で僅かしか突出しない。か
くして、車輪の高さでの車室内の通路幅は車幅を同じと
した場合相応に拡大される。所要の駆動モーメント並び
に車輪回転数への適合が後置の遊星歯車装置を介してな
される。In the case of the present invention, the drive output of one large electric motor is divided into a plurality of relatively small outputs. The individual drive outputs are aggregated by a single spur gear set. The individual relatively small electric motors have a correspondingly small axial length, so that the entire drive unit also projects only slightly in the direction of the bus into the passenger compartment. Thus, the width of the passage in the cabin at the height of the wheels is correspondingly increased if the vehicle width is the same. The adjustment to the required drive moment as well as the wheel speed is effected via a downstream planetary gear set.

【０００７】有利な実施態様によれば、平歯車集合歯車
装置の被動側の平歯車が伝動軸を介して遊星歯車装置の
太陽歯車に接続されている。車輪ハブを回転可能に支承
する車輪軸受けは軸線方向で平歯車集合歯車装置と遊星
歯車装置との間に配置されている。リムは車輪ハブに固
定される。According to an advantageous embodiment, the driven spur gear of the spur gear set is connected via a transmission shaft to the sun gear of the planetary gear set. Wheel bearings which rotatably support the wheel hub are arranged axially between the spur gear set and the planetary gear set. The rim is fixed to the wheel hub.

【０００８】ブレーキは空圧式のデイスクブレーキとし
て構成されると有利である。このデイスクブレーキは常
用ブレーキ、パーキングブレーキ、非常又は補助ブレー
キとして働く。Advantageously, the brake is configured as a pneumatic disk brake. This disk brake acts as a service brake, parking brake, emergency or auxiliary brake.

【０００９】別の有利な実施態様によればブレーキは油
圧式のデイスクブレーキとして構成される。この場合も
常用ブレーキ、パーキングブレーキ、非常または補助ブ
レーキとして働く。According to another advantageous embodiment, the brake is designed as a hydraulic disc brake. In this case also, it works as a service brake, parking brake, emergency or auxiliary brake.

【００１０】ブレーキキャリパは水平な車輪中心線の下
側に配置される。ブレーキキャリパは１５０°と１２０
°との間のセクター内に位置すると有利であって、この
場合デイスクロータの法線ベクトルは車輪軸線の方向を
指し、前記角度は垂直に上方へ、即ち車の鉛直軸の方向
を指す動径ベクトルから測定される。ブレーキ作動機構
は組合わせ型のダイアフラム兼ばね蓄圧シリンダとして
構成されている。このブレーキ作動機構は軸線方向で１
つの中空の軸体内に配置されている。この作動機構はホ
イールエンドが組み付けられた場合中空の軸体の内側に
位置することによって衝撃から保護される。The brake caliper is located below the horizontal wheel center line. Brake calipers are 150 ° and 120
In the sector between 0 ° and 0 °, the normal vector of the disk rotor pointing in the direction of the wheel axis, said angle being vertically upward, ie in the direction of the vertical axis of the car. Measured from vector. The brake actuating mechanism is configured as a combined diaphragm / spring accumulator cylinder. This brake actuation mechanism is one in the axial direction.
Are arranged in two hollow shafts. This actuating mechanism is protected from impact by being located inside the hollow shaft when the wheel end is assembled.

【００１１】本発明の別の有利な実施態様によれば、電
気モータ、平歯車集合歯車装置及び遊星歯車装置が車輪
ハブの内側に収納されている。この場合全駆動ユニット
はリムから軸線方向で内方へほとんど突出することがな
く、従って車輪の高さでの低床バスの通路幅はほぼタイ
ヤの幅によって制限される。車輪ハブを回転可能に支承
する車輪軸受けは軸方向で平歯車集合歯車装置と遊星歯
車装置との間に配置される。リムは車輪ハブに固定され
る。According to another advantageous embodiment of the invention, the electric motor, the spur gear set and the planetary gear set are housed inside the wheel hub. In this case, the entire drive unit hardly projects axially inwardly from the rim, so that the width of the low-floor bus at wheel level is limited substantially by the tire width. The wheel bearings which rotatably support the wheel hub are arranged axially between the spur gear set and the planetary gear set. The rim is fixed to the wheel hub.

【００１２】ブレーキが湿式の多板ブレーキとして構成
されると有利である。このブレーキも常用ブレーキ、パ
ーキングブレーキ、非常又は補助ブレーキとして働く。
この湿式の多板ブレーキは軸線方向で両方の歯車装置の
間、即ち平歯車集合歯車装置と遊星歯車装置との間にか
又は両方の車輪軸受けの間に配置される。Advantageously, the brake is configured as a wet, multi-plate brake. This brake also serves as a service brake, parking brake, emergency or auxiliary brake.
The wet multi-disc brake is arranged axially between both gear trains, ie between the spur gear train and the planetary gear train or between both wheel bearings.

【００１３】本発明の有利な実施態様によれば、ブレー
キ作動が２つの別個の油圧シリンダによってなされる。
この場合パーキングブレーキはばね負荷を受けたピスト
ンによって作動される。また、常用ブレーキは油圧負荷
を受けたピストンによって作動される。According to an advantageous embodiment of the invention, the braking is effected by means of two separate hydraulic cylinders.
In this case, the parking brake is activated by a spring-loaded piston. The service brake is operated by a piston that receives a hydraulic load.

【００１４】電気モータは空気、油又は他の媒体によっ
て冷却される。[0014] The electric motor is cooled by air, oil or other medium.

【００１５】本発明の有利な実施態様によれば、複数の
電気モータを個別に制御することができる。このこと
は、単一モータによる車輪駆動に比較して部分負荷範囲
の高効率を可能にする。According to an advantageous embodiment of the invention, a plurality of electric motors can be controlled individually. This allows for higher efficiency in the partial load range compared to single motor wheel drive.

【００１６】車輪駆動装置の駆動出力が出力の大きな１
つのモータよりも短かく構成される小出力の複数の電気
モータに分割されることによって、車輪駆動装置の全長
の短縮と並んでさらに別の利点も得られる。即ち、車輪
ヘッド内の１つの電気モータが故障しても、残りの電気
モータでの運転が可能である。また、乗用車用の駆動モ
ータの出力クラス内であって大量生産されるモータを使
用することによってコスト上の利点も生ずる。The drive output of the wheel drive unit is 1
The division into a plurality of electric motors of smaller power, which is shorter than one motor, offers a further advantage as well as a reduction in the overall length of the wheel drive. That is, even if one electric motor in the wheel head fails, operation with the remaining electric motors is possible. The use of mass-produced motors in the output class of drive motors for passenger cars also offers cost advantages.

【００１７】[0017]

【発明の実施の形態】図１および図２に示す実施例にお
いて、２つの電気モータ１は１つの平歯車集合歯車装置
（Stirnradsammelgetriebe）２を駆動する。ここで平歯
車集合歯車装置２は、中央部に位置する１つの被動歯車
と、この被動歯車に噛み合うとともに各電気モータのモ
ータシャフトに設けられた（固着された）複数の（本例
では電気モータ１が２つであるため２つの）駆動歯車と
から構成されている。1 and 2, two electric motors 1 drive one spur gear set (Stirnradsammelgetriebe) 2. In the embodiment shown in FIGS. Here, the spur gear set gear device 2 includes one driven gear located at the center and a plurality of (in this example, the electric motors) meshed with the driven gears and provided (fixed) on the motor shafts of the electric motors. And two (1) two drive gears.

【００１８】平歯車集合歯車装置２の被動歯車は伝動軸
に接続され、さらにこの伝動軸が遊星歯車装置３の太陽
歯車に接続されている。すなわち、平歯車集合歯車装置
２は、前記伝動軸を介して遊星歯車装置３の太陽歯車に
接続されている。The driven gear of the spur gear set gear device 2 is connected to a transmission shaft, and the transmission shaft is connected to the sun gear of the planetary gear device 3. That is, the spur gear set gear device 2 is connected to the sun gear of the planetary gear device 3 via the transmission shaft.

【００１９】上記構成を採ることにより、複数の（本例
では２つの）電気モータ１の出力は平歯車集合歯車装置
２により１つにまとめられて１つの伝動軸に出力され、
遊星歯車装置３に伝達されるようになっている。遊星歯
車装置３の内歯車は不動である。遊星キャリアが車輪ハ
ブ５を介して２つのリム６を駆動する。車輪ハブ５を回
転可能に支承する車輪軸受け４は軸線方向で平歯車集合
歯車装置２と遊星歯車装置３との間に配置されている。
空圧式のデイスクブレーキとして構成されているブレー
キ７は常用ブレーキ、パーキングブレーキ、非常兼補助
ブレーキの機能を果たす。ブレーキキャリパ８が水平な
車輪中心線の下側に配置されている。このブレーキキャ
リパ８は１５０°と２１０°との間のセクター内に位置
し、この場合円板の法線ベクトルは車輪軸線の方向を指
し、角度は垂直から上へ、即ち車の鉛直軸の方向を指す
動径ベクトルが測定される。ブレーキ作動機構９は組合
わせ型のダイアフラム兼ばね蓄圧シリンダとして構成さ
れており、このシリンダは軸線方向で１つの中空の軸体
内に配置されていてホイールエンド(Radkopf)の組み付
けに伴って軸体内（Achskoper)で衝撃から保護される。With the above configuration, the outputs of a plurality of (two in this example) electric motors 1 are combined into one by the spur gear set gear device 2 and output to one transmission shaft.
The power is transmitted to the planetary gear device 3. The internal gear of the planetary gear set 3 is stationary. The planet carrier drives the two rims 6 via the wheel hub 5. The wheel bearing 4 which rotatably supports the wheel hub 5 is disposed between the spur gear set gear unit 2 and the planetary gear unit 3 in the axial direction.
The brake 7 configured as a pneumatic disk brake functions as a service brake, a parking brake, and an emergency / auxiliary brake. A brake caliper 8 is arranged below the horizontal wheel center line. This brake caliper 8 is located in the sector between 150 ° and 210 °, where the normal vector of the disc points in the direction of the wheel axis and the angle is from vertical to upward, ie in the direction of the vertical axis of the car. Is measured. The brake actuating mechanism 9 is configured as a combined diaphragm / spring accumulator cylinder, which is axially arranged in a single hollow shaft and which is mounted with the wheel end (Radkopf) in the axial direction. Achskoper) protects from impact.

【００２０】図３及び図４に示す実施例の場合、３つの
電気モータ１が平歯車集合装置２を駆動する。この平歯
車集合歯車装置２は伝動軸を介して遊星歯車装置３の太
陽歯車に接続されている。遊星歯車装置３の内歯車は不
動である。遊星キャリアは車輪ハブ５を介して２つのリ
ム６を駆動する。電気モータ１、平歯車集合歯車装置２
及び遊星歯車装置３は車輪ハブ５の内側に収納されてい
る。この場合これら全駆動ユニットは軸線方向で内方へ
リム幅を越えて突出することはほとんどない。車輪ハブ
５を回転可能に支承する車輪軸受け４は軸線方向で電気
モータ１と遊星歯車装置３との間に配置されている。湿
式の多板ブレーキとして構成されたブレーキ１７は常用
ブレーキ、パーキングブレーキ、非常兼補助ブレーキの
機能を果たす。ブレーキ作動機構１９は２つの別個の油
圧シリンダから成っている。パーキングブレーキはばね
負荷を受けたピストンによって作動される。常用ブレー
キは油圧負荷を受けたピストンによって作動される。３
つの電気モータ１は個別に制御することができる。In the embodiment shown in FIGS. 3 and 4, three electric motors 1 drive the spur gear assembly 2. The spur gear set 2 is connected to the sun gear of the planetary gear set 3 via a transmission shaft. The internal gear of the planetary gear set 3 is stationary. The planet carrier drives two rims 6 via a wheel hub 5. Electric motor 1, Spur gear set gear device 2
And the planetary gear set 3 is housed inside the wheel hub 5. In this case, all these drive units hardly project axially inward beyond the rim width. A wheel bearing 4 which rotatably supports a wheel hub 5 is arranged axially between the electric motor 1 and the planetary gear set 3. The brake 17 configured as a wet multi-plate brake performs the functions of a service brake, a parking brake, and an emergency / auxiliary brake. The brake actuating mechanism 19 consists of two separate hydraulic cylinders. The parking brake is actuated by a spring-loaded piston. The service brake is actuated by a piston under a hydraulic load. 3
The two electric motors 1 can be controlled individually.

【図面の簡単な説明】[Brief description of the drawings]

【図１】複数の電気モータ、平歯車集合歯車装置及び後
置の遊星歯車装置を備えた電気式車輪駆動装置の略示縦
断面図。FIG. 1 is a schematic longitudinal sectional view of an electric wheel drive device including a plurality of electric motors, a spur gear set gear device, and a trailing planetary gear device.

【図２】図１の電気式車輪駆動装置を内方側（ホイール
エンド側）から示した概略図。FIG. 2 is a schematic diagram showing the electric wheel drive device of FIG. 1 from an inner side (wheel end side).

【図３】３つの電気モータ、平歯車集合装置及び後置の
遊星歯車装置を備えた電気式車輪駆動装置の略示縦断面
図。FIG. 3 is a schematic longitudinal sectional view of an electric wheel drive device provided with three electric motors, a spur gear assembly, and a rear planetary gear set.

【図４】図３の電気式車輪駆動装置を内方側（ホイール
エンド側）から示した概略図。FIG. 4 is a schematic diagram showing the electric wheel drive device of FIG. 3 from the inside (wheel end side).

【符号の説明】[Explanation of symbols]

１ 電気モータ ２ 平歯車集合歯車装置 ３ 遊星歯車装置 ４ 車輪軸受け ５ 車輪ハブ ６ リム ７、１７ ブレーキ ８ ブレーキキャリパ ９、１９ ブレーキ作動機構 DESCRIPTION OF SYMBOLS 1 Electric motor 2 Spur gear set gear device 3 Planetary gear device 4 Wheel bearing 5 Wheel hub 6 Rim 7, 17 Brake 8 Brake caliper 9, 19 Brake operation mechanism

フロントページの続き (72)発明者 ミヒャエル、ロスケ ドイツ連邦共和国フリードリッヒスハーフ ェン、シューベルトシュトラーセ、40Continued on the front page (72) Inventor Michael, Roske Friedrichshafen, Germany, Schubertstrasse, 40

Claims (10)

【特許請求の範囲】[Claims] 【請求項１】少なくとも１つの遊星歯車装置（３）と車
輪軸受け（４）とブレーキ（７）とを備えた電気式車輪
駆動装置において、複数の電気モータ（１）の駆動出力
が１つの平歯車集合歯車装置（２）を介してまとめられ
ていることを特徴とする、電気式車輪駆動装置。1. An electric wheel drive comprising at least one planetary gear set (3), a wheel bearing (4) and a brake (7), wherein the drive outputs of the plurality of electric motors (1) are one flat. An electric wheel drive unit, wherein the electric wheel drive unit is integrated via a gear set gear unit (2). 【請求項２】平歯車集合歯車装置（２）の被動側の平歯
車が伝動軸を介して遊星歯車装置（３）の太陽歯車に接
続されており、軸線方向で平歯車集合歯車装置（２）と
遊星歯車装置（３）との間に車輪軸受け（４）が配置さ
れていることを特徴とする、請求項１記載の電気式車輪
駆動装置。2. The spur gear on the driven side of the spur gear set gear (2) is connected to the sun gear of the planetary gear set (3) via a transmission shaft, and is arranged in the axial direction with the spur gear set gear (2). 2. The electric wheel drive according to claim 1, wherein a wheel bearing (4) is arranged between the planetary gear unit (3) and the planetary gear unit (3). 3. 【請求項３】ブレーキ（７）が空圧式のデイスクブレー
キとして構成されていて、常用ブレーキ、駐車ブレー
キ、非常又は補助ブレーキとして働くことを特徴とす
る、請求項１記載の電気式車輪駆動装置。3. The electric wheel drive according to claim 1, wherein the brake is configured as a pneumatic disk brake and serves as a service brake, a parking brake, an emergency or auxiliary brake. 【請求項４】ブレーキ（７）が油圧式のデイスクブレー
キとして構成されていて、常用ブレーキ、駐車ブレー
キ、非常又は補助ブレーキとして働くことを特徴とす
る、請求項１記載の電気式車輪駆動装置。4. The electric wheel drive according to claim 1, wherein the brake is configured as a hydraulic disk brake and serves as a service brake, a parking brake, an emergency or auxiliary brake. 【請求項５】ブレーキキャリパ（８）が水平な車輪中心
線の下側に配置されており、ブレーキ作動機構（９）が
組合わせ型のダイヤフラム兼ばね蓄圧シリンダとして構
成されて軸線方向で中空の軸体内に配置されていること
を特徴とする、請求項３又は４に記載の電気式車輪駆動
装置。5. A brake caliper (8) is arranged below a horizontal wheel center line, and a brake actuating mechanism (9) is constructed as a combined diaphragm / spring accumulator cylinder and is axially hollow. The electric wheel drive device according to claim 3, wherein the electric wheel drive device is disposed in a shaft body. 【請求項６】電気モータ（１）、平歯車集合歯車装置
（２）及び遊星歯車装置（３）が車輪ハブ（５）の内側
に収納されていることを特徴とする、請求項１記載の電
気式の車輪駆動装置。6. The device according to claim 1, wherein the electric motor, the spur gear set gear and the planetary gear set are housed inside the wheel hub. Electric wheel drive. 【請求項７】ブレーキ（７）が湿式多板ブレーキとして
構成されていて常用ブレーキ、駐車ブレーキ、非常又は
補助ブレーキとして働くことを特徴とする、請求項１記
載の電気式車輪駆動装置。7. The electric wheel drive according to claim 1, wherein the brake is constructed as a wet multi-disc brake and serves as service brake, parking brake, emergency or auxiliary brake. 【請求項８】ブレーキ作動機構（１９）が２つの別個の
油圧シリンダから成っており、パーキングブレーキはば
ね負荷を受けたピストンによって作動され、常用ブレー
キは油圧負荷を受けたピストンによって作動されること
を特徴とする、請求項７記載の電気式車輪駆動装置。8. The brake actuating mechanism (19) comprises two separate hydraulic cylinders, wherein the parking brake is actuated by a spring loaded piston and the service brake is actuated by a hydraulically loaded piston. The electric wheel drive device according to claim 7, characterized in that: 【請求項９】電気モータ（１）が空気、水、油又は別の
媒体によって冷却されることを特徴とする、請求項１記
載の電気式車輪駆動装置。9. The electric wheel drive according to claim 1, wherein the electric motor is cooled by air, water, oil or another medium. 【請求項１０】複数の電気モータ（１）が個別に制御さ
れることを特徴とする、請求項１記載の電気式車輪駆動
装置。10. The electric wheel drive according to claim 1, wherein a plurality of electric motors are individually controlled.
JP10057127A 1997-03-08 1998-03-09 Electric wheel drive device provided with plural electric motors Pending JPH10258642A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19709579.8 1997-03-08
DE19709579A DE19709579C2 (en) 1997-03-08 1997-03-08 Electric single wheel drive with multiple motors

Publications (1)

Publication Number Publication Date
JPH10258642A true JPH10258642A (en) 1998-09-29

Family

ID=7822700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10057127A Pending JPH10258642A (en) 1997-03-08 1998-03-09 Electric wheel drive device provided with plural electric motors

Country Status (2)

Country Link
JP (1) JPH10258642A (en)
DE (1) DE19709579C2 (en)

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Publication number Publication date
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DE19709579A1 (en) 1998-09-17

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