JP2519888B2 - Vehicle emergency driving device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an emergency driving device for a vehicle when the clutch engagement / disengagement operation or the transmission shift operation of the vehicle is disabled in a dangerous place such as a railroad crossing. .

[Prior art and its problems]

In a vehicle equipped with an automatic transmission that is automatically controlled by an electronic control unit according to the driving state of the vehicle, even if the engine stops and cannot be restarted due to a malfunction, the vehicle should be moved urgently. An emergency operation device capable of doing so has been proposed (Japanese Patent Laid-Open No. 60-94826).

However, while this emergency operating system is useful when the engine system is in trouble, it does not function when the controller fails. Therefore, there has been a demand for a device that can perform emergency operation even if the controller fails.

However, in the specification and drawings of Japanese Utility Model Application No. Sho 60-135165,
A change lever provided in the driver's seat for gear shifting operation, a lever position sensor for detecting the gear shift operation position of this change lever, a gear position sensor for detecting the gear position of the transmission, and a transmission A shift actuator that drives a shift unit that shifts the shift gear in the shift direction; a select actuator that drives the shift unit in the select direction; and a shift actuator that shifts the transmission to a predetermined gear position based on the outputs of both sensors. The main controller for controlling both actuators, the emergency switch for shifting the gear position of the transmission to the first speed or the reverse speed, and the switching output of the emergency switch inhibits the control of the main controller. Moreover, the gear position is forcibly shifted to the first speed or the reverse speed regardless of the position of the change lever. In the emergency control device for the electronically controlled transmission including the emergency controller for controlling the both actuators, the neutral switch that closes when the shift unit is in the neutral state, and the shift unit is in the first speed or reverse. The emergency controller is provided with a select switch which is closed when the gear is in the select state. After the neutral switch and the select switch are sequentially closed, the emergency controller automatically shifts the gear in the first gear or in the reverse gear. The emergency control device for the electronically controlled transmission, which is characterized in that it is performed in the above, is only shown to control the transmission by the emergency controller in an emergency, and the clutch connection is not shown. It is completely unclear what to do and it cannot be applied to vehicles with automatic transmissions as is. There.

[Object of the Invention]

An object of the present invention is to provide an emergency operation device for a vehicle that can control the transmission and the clutch even when the clutch engagement / disengagement operation or the transmission shift operation is disabled due to a failure of the controller at the vehicle such as railroad crossing. It is in.

[Outline of Invention]

In order to achieve the object of the present invention, each solenoid valve of a clutch actuator and a transmission actuator, a main controller that controls both actuators, and when the controller fails, the gear position of the transmission is set independently of the forward speed stage. Alternatively, in an emergency control device for an electronically controlled transmission having an emergency controller for shifting to the reverse speed, from a line connecting each solenoid valve of the clutch actuator and the transmission actuator to the main controller to an emergency controller. In addition to providing a lead-out line, the emergency controller includes a first switch for disconnecting a power supply circuit to the main controller and connecting the lead-out line to a power supply and the emergency controller, and the forward or backward solenoid valve. To activate the transmission An emergency operation device for a vehicle, comprising: a second switch for shifting to a speed or a reverse speed; and a third switch for operating the clutch solenoid valve to connect the clutch to start the vehicle. Provided.

〔Example〕

FIG. 1 is a circuit diagram of an emergency operation device, FIG. 2 is a hydraulic circuit diagram of a clutch actuator and a transmission actuator, FIG. 3 is an external view of an operation panel of an emergency controller, and FIG. A circuit diagram of a modified example and FIG. 5 are block diagrams showing a control procedure.

In FIG. 1, 1 is a battery, 2 is a main controller composed of an electronic control device for controlling vehicle operation,
The inside thereof includes a CPU, an input / output device, and a storage device such as a ROM and a RAM (none of which is shown). 3 is an emergency controller, which is a first switch SW- which is a main switch.
1. Second switch SW-2 for selecting forward or backward, third switch SW- for starting.
3. Furthermore, a power indicator IND1 indicating that power has been supplied to the emergency controller, an indicator IND2 indicating that the gear position is second, IND3 indicating that the gear position is backward, and indicating that the vehicle is in a starting state. Includes IND4. 6 is a clutch actuator, 7 is a transmission actuator, and V1, V3, and V
5 to V10 indicate respective solenoid valves. Further, V2 and V4 solenoid valves (shown in FIG. 2) are further used in the clutch actuator 6, but these solenoid valves are not shown in FIG. 1 because they are not necessary during emergency control. .

D-1 to D-10 are diodes, which are control diodes for the emergency controller 3,
The solenoid valves V1 and V3 of the clutch actuator 6, the solenoid valves V5 to V10 of the transmission actuator 7, and the relay RL-5 are for controlling from the emergency controller. The relays RL-1 to RL-5 are likewise controlled by the emergency controller 3.

Reference numeral 8 is a key switch, and 9 is a gear position switch.

In FIG. 2, 4 is a hydraulic power source, and 5 is a tank. 6a is a cylinder of the clutch actuator 6,
The cylinder 6a is biased in the contact direction by a spring, and is configured to be driven in the closing direction when the solenoid valves V1 and V3 are on and the solenoid valves V2 and V4 are off. 7a, 7
b and 7c are three-position cylinders of the transmission actuator 7. For example, when the cylinder 7a is taken as an example, V7 is on, V6 is off and shifts to the first gear position, and V7 is off and V6 is on and shifts to the reverse position. The V7 and V6 are turned on and are set to the neutral position.

Referring next to FIG. 3, the operation panel of the emergency controller shown in FIG. 3 is covered with a cover and is used with the cover removed in an emergency. The operation panel has first to third switches SW used in the emergency controller 3.
-1, SW-2, SW-3, and indicators IND1, IND2, IND3, IND
4 is provided, and further, the display of “operation procedure”, the numbers “1”, “2”, and “3” indicating the operation procedure, and “power”, “forward” indicating the operation of each switch, "Back" and "Start" are displayed.

Next, the operation of the emergency operation device by the emergency controller will be described with reference to FIGS.

Now, when the controller fails and the vehicle cannot start, the first switch SW on the operation panel shown in FIG.
Press -1 to turn it on. When the switch SW-1 is turned on, the voltage of the battery 1 is relayed through the ignition contact of the key switch 8 and the first switch SW-1 to the relay RL-1,
It is applied to the solenoid of RL-4 to open the normally closed contact of relay RL-1 and close the normally open contact of relay RL-4.

When the contact of the relay RL-1 opens, the power supply from the battery 1 to the main controller 2 is cut off, and along with this, the power supply A (collector voltage of the transistor TR4) of the solenoid valve drive circuit of the main controller 2 is turned off. Therefore, the solenoid valve control functions of the clutch actuator 6 and the transmission actuator 7 are stopped.

On the other hand, when the contact of the relay RL-4 is turned on, the current from the battery 1 causes the solenoid of the relay RL-5, the relay RL-.
The normally open contact of relay RL-5 is closed because it flows through the contact of No. 4. Therefore, the relay RL-5 keeps the clutch actuator 6 and the transmission actuator 7 in a state capable of supplying the power from the battery 1 in an emergency. The indicator IND1 is the battery 1,
Key switch 8, first switch SW-1, indicator
It is turned on by the formation of a current path through IND1 and relay RL-4, indicating that power is being supplied to the emergency controller. Also, the solenoid valve V of the clutch actuator 6
1, V3 are battery 1, relay RL-5 closed contacts, solenoid valves V1, V3, diodes D-1, D-2, closed switch
It is turned on by the formation of a current path through the closed contacts of SW-3 and relay RL-4. Furthermore, the solenoid valves V5 to V10 of the transmission actuator 7 are the battery 1, the closed contact of the relay RL-5, the solenoid valves V5 to V10,
Diodes D-3 to D-9 (except D-7)
It is turned on by the formation of a current path through the closed contact of the relay RL-4, setting the transmission actuator 7 in the neutral position.

Next, from this state, the second switch SW- on the operation panel
The gear is selected by 2. For example, when the gear is selected as the second gear, the "forward" display button on the operation panel is pressed, whereby the contact of the switch SW-2 is put on the second side. Therefore, in the relay RL-2, a voltage is applied to the solenoid via the first switch SW-1 and the second switch SW-2, so that the normally closed contact is opened. As a result, the solenoid valve V5 is turned off and the 3-position cylinder 7b shown in FIG. 2 is shifted to the second position. When the shift is completed, the second micro switch of the gear position switch 9 is opened and the indicator IND2 lights up.

On the other hand, when the "reverse" button of the second switch SW-2 is pressed, the solenoid valve V7 is similarly turned off because the normally closed contact of the relay RL-3 is opened, and the 3-position cylinder 7a is moved to the retracted position. It is shifted and the indicator IND3 is illuminated.

Next, after confirming the lighting of the shift indicator, the third switch SW-3 for engaging the clutch is pushed on the operation panel to open the normally closed contact. Therefore, the solenoid valves V1 and V3 of the clutch actuator are turned off, and the clutch is controlled from open to closed. Along with this, the indicator
IND4 lights up. In this way, the state in which emergency operation is possible is set.

Next, driving is performed, but when the engine is set to be in a state where emergency driving is possible, if the engine is rotating, the vehicle is driven by idling rotation. When the engine is stopped, the key switch 8 can be used as a starter contact to perform cranking travel of the starter.

Next, FIG. 4 shows a modification of the embodiment of FIG. 1, in which diodes D-1, D-2 forming the current paths of the solenoid valves V1, V3 of the clutch actuator 6 are shown. The switch SW-3 is bypassed via the contact of the relay RL-7, and the relay RL-7 is configured to be turned on / off by the on / off control of the brake switch of the foot brake. Therefore, in this modification,
In the self-propelled state while the engine is rotating, the clutch engagement / disengagement control can be performed in accordance with the brake operation, which makes the operation easier.

Next, with reference to FIG. 5, the operation of the emergency operation system of the present invention is summarized. In an emergency, the emergency controller first disengages the clutch and sets the transmission gear to the neutral position, and then selects. The gear is shifted to the engaged gear, and then the clutch is engaged. When the engine is rotating, it is idling, and when the engine is stopped, it is cranked by the starter and idling.

〔The invention's effect〕

As described in detail above, the emergency operation device for a vehicle according to the present invention includes the electromagnetic valves of the clutch actuator and the transmission actuator, the main controller that controls both actuators, and the transmission independently when the controller fails. An emergency control device for an electronically controlled transmission having an emergency controller for shifting the gear position of the clutch to the forward speed or the reverse speed, connecting each solenoid valve of the clutch actuator and the transmission actuator to the main controller. A lead-out line from the line to the emergency controller is provided, and in the emergency controller, a first switch for disconnecting the power supply circuit to the main controller and connecting the lead-out line to the power supply and the emergency controller; The forward or backward power A second switch for operating the valve to shift the transmission to the forward speed or the reverse speed; and a third switch for operating the clutch solenoid valve to connect the clutch to start the vehicle. As a feature, due to the failure of the main controller, the clutch connection / disconnection operation,
When the transmission shift operation is disabled,
Emergency operation can be performed by the emergency controller. At this time, not only the transmission but also the clutch can be controlled. Therefore, the emergency controller alone shuts off the power supply circuit to the main controller and connects the necessary mechanism to the emergency controller. There is an effect that the shift to the forward speed or the reverse speed and the connection of the clutch can be performed smoothly and reliably.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an emergency operation device, FIG. 2 is a hydraulic circuit diagram of a clutch actuator and a transmission actuator, FIG. 3 is an external view of an operation panel of an emergency controller, and FIG. 4 is an emergency operation device. FIG. 5 is a circuit diagram of a modified example of FIG. 5, and FIG. 5 is a block diagram showing a control procedure. 1 ... Battery, 2 ... Main controller, 3 ... Emergency controller, 4 ... Hydraulic power source, 5 ... Tank, 6 ... Clutch actuator, 7 ... Transmission actuator, 8 ... Key switch, 9 ... Gear position switch SW-1 …… First switch (main switch) SW-2 …… Second switch (switch for forward speed or reverse speed) SW-3 …… Third switch (for clutch connection) switch).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tsutomu Kitagawa Tsutomu Kitazawa, No.8, Fujisawa City, Fujisawa Plant (56) References JP-A-60-94826 (JP, A) (JP, U) Japanese Patent Publication Sho 56-53136 (JP, B2)

Claims (2)

(57) [Claims] 1. Solenoid valves of a clutch actuator and a transmission actuator, a main controller for controlling both of the actuators, and a gear position of a transmission to a forward speed stage or a reverse speed stage independently of a failure of the controller. In an emergency control device for an electronically controlled transmission having an emergency controller for shifting, a lead-out line from a line connecting each solenoid valve of the clutch actuator and the transmission actuator and the main controller to the emergency controller is provided. The emergency controller includes a first switch for disconnecting the power supply circuit to the main controller and connecting the lead-out line to the power supply and the emergency controller, and operating the forward or reverse solenoid valve to change gears. Forward gear or reverse gear And a second switch that allowed to shift,
An emergency operating apparatus for a vehicle, comprising a third switch for operating the clutch solenoid valve to connect the clutch to start the vehicle. 2. The emergency operation system for a vehicle according to claim 1, further comprising a switch interlocking with a brake pedal connected in parallel with the third switch.