JPH0536732Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides an automatic transmission selection device that prevents the automatic transmission from selecting a driving mode under predetermined conditions. This invention relates to an automatic transmission selection device that also improves safety.

(Conventional technology) Recently, the number of cars with automatic transmissions (automatic cars) has increased, and accidents unique to automatic cars are occurring due to driver inexperience with operation. Sudden starting or sudden reversing may occur when switching to D range (normal driving range) or R range (reverse range) in the same state. In order to prevent such accidents peculiar to automatic vehicles, there has conventionally been a selection device for an automatic transmission as described in, for example, Japanese Utility Model Application Publication No. 57-163427. This conventional automatic transmission selection device prevents the driver from operating the foot brake or hand brake when the vehicle speed is below a predetermined value immediately after starting, for example, due to the driver's inexperience with operating an automatic vehicle. To provide an automatic transmission selection device capable of avoiding sudden starting or reversing of an automobile in the case of forgetting to change from a parking range or a neutral range to a driving range such as a drive range. That is, in such rare cases, a predetermined control system prevents the select lever from swinging, thereby making it possible to avoid sudden starting or reversing of the vehicle.

(Problems that the invention attempts to solve) However, in the case of such a conventional automatic transmission selection device, (1) the foot brake is not operating, and (2) the hand brake is not operating. and (3) the vehicle speed is below a predetermined value, the select lever is prevented from operating the select lever. There is also a problem in that the selection operation of the select lever is blocked even in an emergency escape, and there is a possibility that it may not be possible to suddenly start the car and make an emergency escape from the railroad crossing.

(Means for Solving the Problem) Therefore, in order to solve the above-mentioned problem, the present invention includes a first detector that detects that the select lever (or select switch) is in the parking range position or the neutral range position; a second detector for detecting that the foot brake is operating; a third detector for detecting that the hand brake is operating; and a fourth detector for detecting that the vehicle speed is equal to or higher than a predetermined value. , a blocking means for blocking a selection operation of the automatic transmission to a driving mode, and a detection signal of the first detector when none of the second, third and fourth detectors generates a detection signal; a control means for responsively activating the blocking means; a four-way flasher lamp provided at four corners of the vehicle; and a control means connected to the four-way flasher lamp;
A selection device for an automatic transmission comprising a hasard switch that outputs a signal that causes a 4-way flasher lamp to flash when the switch is turned on, wherein a switch signal from the hazard switch is also input to the control means, and when the hazard switch is turned on, the switch signal of the hazard switch is input to the control means. The control means may be configured to cancel the operation of the blocking means regardless of the condition for operating the blocking means.

(Function) When the foot brake and hand brake are not operating and the vehicle speed is below a predetermined value (substantially stopped), the second, third and fourth detectors output signals to the control means. In this case, the control means operates the blocking means in response to a signal from the first detector that detects that the select lever (or select switch) is in the parking range position or the neutral range position. Safety can be improved by preventing the automatic transmission from being selected to a driving mode (drive range position, reverse range position, etc.) and avoiding sudden starts and reverses of the vehicle.

On the other hand, in an emergency situation of a car, such as when the car is stranded due to stalling at a railroad crossing, it may be safer to activate the blocking means even if the predetermined conditions are met as described above. In this case, the hazard switch is activated, a signal is input to the control means, the control means deactivates the blocking means, and the 4-way flasher lamp flashes to alert the surroundings. It is possible to start the car and make an emergency escape from the railroad crossing while prompting the driver.

(Example) Hereinafter, the present invention will be explained based on the drawings.

FIG. 1 is a diagram showing an embodiment of a selection device for an automatic transmission according to the present invention.

First, the configuration will be explained. In Fig. 1, 1 is a foot brake operation detector (second detector), and foot brake operation detector 1 detects this state when the foot brake is depressed and outputs a signal Sf.
Output to OR circuit 2. In addition to the above-mentioned signal Sf, the OR circuit 2 also includes a handbrake operation detector (third
A signal Sp indicating that the handbrake has been applied is input from the sensor) 3, and a signal Ss indicating that the vehicle is running (a predetermined value or higher) is input from the vehicle speed sensor (fourth detector) 4. Ru. OR circuit 2 allows these three inputs to be ORed, and the above-mentioned signal
When one or more of Sf, Sp, and Ss is input, a signal INHIBIT is output to the control circuit (control means) 5. The control circuit 5 receives the above-mentioned signals.
In addition to INHIBIT, a signal Sk from the select knob switch 6 indicating that the select knob has been pressed;
A signal Sr indicating that the select lever is in the P range or N range position is input from the non-driving range detector (first detector) 7, and a signal CANCEL is input from the hazard switch 41. This hazard switch 41 is provided at a predetermined position within the driver's seat and is operated in an emergency or the like.

The signal output from the hazard switch 41 has two functions; one is input to the control circuit 5 and functions as the above-mentioned CANCEL signal to release the inhibition of select operation of the select lever; Input to hazard device 42 and 4-way flasher lamp (not shown)
It functions as a HAZARD signal to blink. The four-way flasher lamps are provided at the four corners of the vehicle to alert those around you when the vehicle is stopped due to a malfunction or the like.

When the combination of the above-mentioned signals meets a predetermined condition, the control circuit 5 outputs the signal CNTRL to a blocking means 9 like the one used in the conventional automatic transmission selection device, and also outputs the signal CNTRL.
Outputs ALARM to the alarm 10 in the driver's seat.
As mentioned above, the hazard switch 41 is operated by the driver in an emergency, etc., and sends the signal CANCEL and HAZARD to the control circuit 5 and the hazard device 4.
Output to 2. Hazard device 42 is a signal
In response to HAZARD, the 4-way flasher lamp installed outside the vehicle will be flashed. The rest of the structure of the select device is the same as that of the conventional automatic transmission select device.

Next, the effect will be explained. Due to the driver's inexperience in operating an automatic vehicle, for example, the driver may drive the engine in a state where the engine speed is high to warm up the engine immediately after starting, and the vehicle speed is below a predetermined value (in a state where the vehicle is essentially stopped). ), if you forget to operate the foot brake or hand brake and change from the parking range or neutral range to the drive range or other driving range, the foot brake operation detector 1 or hand brake operation detector 3 , and the vehicle speed sensor 4 outputs a signal Sf or
At this time, the control circuit 5 does not generate Sp and Ss.
outputs a signal CNTRL to the blocking means 9 in response to the signals Sr and Sk from the non-driving range detector 7 and the select knob switch 6, which detect that the select lever is in the parking range position or the neutral range position. By activating the blocking means 9, the select lever is prevented from being operated to the drive range position, the reverse range position, etc., and safety can be improved by avoiding sudden starting or sudden reversing of the vehicle. can.
At the same time, the control circuit 5 also outputs the signal ALARM to the alarm 10 to activate the alarm 10,
Generates a warning signal to the driver.

On the other hand, in an emergency situation of a car, such as when the car is stranded due to stalling at a railroad crossing, if the predetermined conditions are met as described above, that is, the foot brake operation detector 1 or the hand brake operation detector 3, and the vehicle speed sensor 4 outputs a signal Sf or
Even if Sp and Ss are not generated and the non-traveling range detector 7 detects that the select lever is in the parking range position or neutral range position and outputs the signal Sr to the control circuit 5, it is prevented. Activating means 9 would actually impair safety. In such an emergency, the driver simply operates the hazard switch 41 to flash the 4-way flasher lamp without hesitation, inputs the signal CANCEL to the control circuit 5, and cancels the output of the signal CNTRL by the control circuit 5. This allows the blocking means 9 to be deactivated. Therefore, the driver can quickly start the vehicle and escape from the railroad crossing while alerting those around him by flashing the four-way flasher lamp. In addition, at this time, the alarm 1 is controlled by the control circuit 5.
The output of the signal ALARM to 0 is also canceled.

In addition, in this embodiment, as mentioned above, the structure is such that the operation of the blocking means is forcibly released only by the switch signal of the hazard switch, so the structure can be simplified while obtaining the above-mentioned effects. And cost reduction can be achieved.

In the above embodiment, the blocking means is configured to block the operation of the select lever, but the present invention is not limited to this, and the configuration may be such that even if the select lever is operated, the manual valve of the automatic transmission will not be moved. Good too. It goes without saying that a push button type select switch or the like may be used instead of the select lever.

(Effects of the Invention) As explained above, according to the present invention, in the event of a vehicle emergency, the operation of the blocking means is canceled by operating the hazard switch. Therefore, in the event of a car emergency, such as when the driver is stranded at a railroad crossing due to a stalled engine, the driver can simply operate the hazard switch without hesitation, and the blocking means will be deactivated and the vehicle will be switched to 4-way. The blinking flasher lamp alerts those around you and allows you to start your car and make an emergency exit from a railroad crossing, further improving the safety of your car.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a control system showing an embodiment of a selection device for an automatic transmission according to the present invention. 1... Foot brake operation detector (second detector), 2... OR circuit, 3... Hand brake operation detector (third detector), 4... Vehicle speed sensor (fourth detector), 5... ...Control circuit (control means), 6...
Select knob switch, 7... non-driving range detector (first detector), 9... blocking means, 10... alarm, 41... hazard switch, 42... hazard device.

Claims (1)

[Scope of utility model registration request] A first detector detects that the select operation member is in the parking range position or neutral range position, a second detector detects that the foot brake is operating, and a second detector detects that the hand brake is operating. a third detector for detecting, a fourth detector for detecting that the vehicle speed is equal to or higher than a predetermined value, a blocking means for blocking select operation of the automatic transmission to the driving mode, and the second, third and third detectors. When none of the four detectors generates a detection signal, the first
a control means for actuating the blocking means in response to a detection signal from the detector; a four-way flasher lamp provided at the four corners of the vehicle; and a hazard switch that outputs a signal that causes a lamp to blink, wherein a switch signal from the hazard switch is also input to the control means, and when the hazard switch is turned on, the blocking means is actuated. A selection device for an automatic transmission, characterized in that the operation of the blocking means by the control means is canceled regardless of the condition.