JPH0366496U

JPH0366496U -

Info

Publication number: JPH0366496U
Application number: JP12843389U
Authority: JP
Priority date: 1989-10-31
Filing date: 1989-10-31
Publication date: 1991-06-27

Description

[Brief explanation of the drawing]

第１図は、本考案に係る車両移動検出装置にお
ける前方車両との距離に対応した電圧出力を発生
するまでの実施例を説明するための図、第２図は
、本考案に係る車両移動検出装置の車両への装着
状態を説明するための図、第３図は、第１図の電
圧出力を受けて警報出力を発生するための実施例
の構成を示す図、第４図は、本考案の制御条件を
概略的に示した図、第５図は、本考案の各種の制
御条件をハードイメージで示した図、第６図は、
本考案で実行される制御プログラムのフローチヤ
ート図、第７図は、第６図中で用いられる警報必
要条件の各種の実施例を示すフローチヤート図、
第８図は、第４図に示したシステムＯＮ条件の実
施例を示すフローチヤート図、第９図は、第４図
に示した警報発生ステツプの実施例を示すフロー
チヤート図、第１０図は、本考案における前方車
両との距離を判定するための基準距離を任意に変
更できるようにした実施例による回路図、である
。図において、１ａ，１ｂ……対象物体、１０，
２０……超音波式送受信器、６，２２……コント
ロールユニツト、２３……警報出力装置、３１…
…車速センサ、３２……パーキングブレーキスイ
ツチ、３３……アクセルペダルスイツチ、３４…
…ギヤ位置センサ、３５……ブレーキペダルスイ
ツチ。図中、同一符号は同一又は相当部分を示す
。 FIG. 1 is a diagram for explaining an embodiment of the vehicle movement detection device according to the present invention until it generates a voltage output corresponding to the distance to the vehicle in front, and FIG. 2 is a diagram for explaining a vehicle movement detection device according to the present invention. FIG. 3 is a diagram showing the configuration of an embodiment for generating an alarm output in response to the voltage output of FIG. 1, and FIG. 4 is a diagram for explaining how the device is mounted on a vehicle. Fig. 5 is a diagram schematically showing the control conditions of the present invention, and Fig. 6 is a diagram showing the various control conditions of the present invention in a hard image.
A flowchart of a control program executed in the present invention, FIG. 7 is a flowchart showing various embodiments of alarm requirements used in FIG.
FIG. 8 is a flowchart showing an example of the system ON conditions shown in FIG. 4, FIG. 9 is a flowchart showing an example of the alarm generation step shown in FIG. 4, and FIG. , is a circuit diagram according to an embodiment of the present invention in which the reference distance for determining the distance to the vehicle ahead can be arbitrarily changed. In the figure, 1a, 1b...target object, 10,
20... Ultrasonic transceiver, 6, 22... Control unit, 23... Alarm output device, 31...
...Vehicle speed sensor, 32...Parking brake switch, 33...Accelerator pedal switch, 34...
...Gear position sensor, 35...Brake pedal switch. In the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of claim for utility model registration] (1) An ultrasonic transceiver attached to the front of the vehicle,
A stop state detection means measures and calculates the distance between the vehicle ahead and the own vehicle from the input/output of the transmitter/receiver when the stop state is detected, and detects the presence of the vehicle ahead when the distance is within a predetermined value. After that, when it is determined that the distance exceeds another predetermined value that is larger than the predetermined value, and the stopped state is detected, it is determined that the preceding vehicle has started, and the alarm output device is activated. A vehicle movement detection device characterized by comprising: a control means for controlling. (2) An ultrasonic transceiver attached to the front of the vehicle,
A stop state detection means measures and calculates the distance between the vehicle in front and the own vehicle from the input/output of the transmitter/receiver when the stop state is detected, and when the distance continues for a predetermined time and is within a predetermined value, the distance is determined. Determine the presence of a vehicle ahead, and then, when it is determined that the distance continues to exceed the predetermined value for a predetermined period of time, if the stopped state is detected, it is determined that the vehicle in front has started and an alarm is output. A vehicle movement detection device comprising: control means for energizing the device. (3) The vehicle according to claim 1 or 2, wherein the control means does not energize the warning output device immediately after starting the engine until the initial running state is determined based on the output of the stopped state detection means. Movement detection device. (4) A claim characterized in that, after energizing the alarm output device, the control means does not re-energize the alarm output device until after detecting the running state based on the output of the stop state detection means. Item 2. Vehicle movement detection device according to item 1 or 2. (5) The vehicle further includes a start operation detection means, and the control means determines that an alarm is unnecessary when the start operation detection means detects a start operation even if the stop state detection means detects a stop state. The vehicle movement detection device according to claim 1 or 2. (6) Vehicle movement according to claim 5, wherein the control means stops the energization when the start operation detection means detects a start operation while the alarm output device is energized. Detection device.