JPH0615304B2 - Preventing wrong start operation of vehicle - Google Patents

Description

The present invention relates to a method for preventing erroneous operation when a vehicle is started,
The present invention relates to a vehicle start error operation prevention method in which a start control means performs a start process based on a load signal.

(Prior Art) An automatic transmission that automates both a clutch operation of a vehicle and a gear position switching operation of a transmission (for example, Japanese Patent Application No. 59-5074).
No. 7, disclosed in the specification and drawings) are known.
According to this device, each control of the starting, starting and shifting of the vehicle can be performed automatically. In particular, to start a vehicle that is in a stopped state after starting, switch the gear position to the start stage when the clutch is disengaged, and after that, with the increase of the load signal due to the depression of the accelerator pedal, the engine rotation becomes the load signal. Increase based on Moreover, the clutch is displaced in the joining direction to gradually increase the rotation on the clutch output shaft side, and thereafter, when the engine rotation and the clutch output rotation match, the clutch is joined to complete the start.

(Problems to be Solved by the Invention) In the automatic transmission described above, when the vehicle is at a stop and the gear train of the transmission is in the start stage, the load signal does not increase due to the depression of the accelerator and the pedal. Without starting, of course, there is no stalling. When such a starting method is used, for example, due to an erroneous operation or a child's mischief, the gear train first enters the starting stage, and when the accelerator is depressed, the engine speed increases and the side brakes are released. Alternatively, if the braking force of the side brakes is weak, the vehicle may suddenly start. It is an object of the present invention to provide a vehicle start-up error operation prevention method capable of preventing a start-up against the driver's will.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in the present invention, a fuel supply amount adjusting actuator for operating the engine rotation of a vehicle,
A load sensor that outputs a load signal of the engine, a vehicle speed sensor that outputs a vehicle speed signal corresponding to the speed of the vehicle, a side brake sensor that outputs a side brake signal when the side brake control operation of the vehicle is activated, and the load A start control means for controlling the fuel supply amount adjusting actuator based on the signal, the vehicle speed signal and the side brake signal, and after the side brake signal is released, when the load signal exceeds the specified value. A method is adopted in which the starting control means enters into a starting process of the vehicle in a stopped state.

(Operation) According to such a vehicle start-up error operation prevention method, the start-up control means acts so as not to perform the start-up processing unless the side brake signal is released.

(Embodiment) FIG. 1 shows an automatic transmission used in a vehicle start error operation prevention method to which the present invention is applied.

This automatic transmission can perform automatic gear shifting including starting, starting and gear shifting of a vehicle equipped with a diesel engine (hereinafter simply referred to as engine) 1. The engine 1 is equipped with a fuel injection pump 3 operated by an electronic governor controller 2 as a fuel supply amount adjusting device. In addition,
The rack 301 of this injection pump is operated by an electromagnetic actuator 302 as a fuel supply amount adjusting actuator. A dry friction clutch (hereinafter simply referred to as a clutch) 4 and a transmission 5 including a gear shift unit 6 are connected to the engine 1.

The clutch 4 includes an air cylinder 7 which is a clutch actuator capable of continuously changing the connection / disconnection state, and the supply and discharge of high pressure air to / from the air cylinder are performed by two solenoid valves 8,
9 performed. That is, the solenoid valve 8 between the air cylinder 7 and the high-pressure air tank 10 can operate the clutch 4 in the disengagement direction when it is on, and the solenoid valve 9 between the air cylinder 7 and the atmosphere opening port 11 engages the clutch 4 when it is on. Both valves can be operated in the direction, and both valves can be continuously turned on and operated as a duty valve that opens and closes at an arbitrary time ratio, to which an operation signal is input from an automatic transmission controller 12 described later.

The gear shift unit 6 of the transmission 5 includes a plurality of (only one shown in FIG. 1) electromagnetic valves 13, and a power cylinder (not shown) through which high pressure air in the high pressure air tank 10 is supplied and discharged by the valves. Is equipped, and these can switch the meshing mode of the gear train of the transmission. The gear shift unit 6 is provided with a gear position sensor 14 for detecting the gear position, and the gear position signal from this is output to the automatic transmission controller 12.

Automatic shift controller 12 and electronic governor controller 2
Are both microcomputers, and the electronic governor controller 2 outputs a drive signal S2 of an appropriate level to the electromagnetic actuator 302 based on the load signal S1 output from the automatic transmission controller 12. An engine speed sensor 15 that outputs an engine speed signal, a clutch output shaft speed sensor 16 that outputs a clutch output shaft speed signal, a vehicle speed sensor 17 that outputs a vehicle speed signal, a gear position sensor 14, and the automatic shift controller 12 are not shown. A gear shift switch 18 that outputs a gear shift signal in the gear position selection switch, a load sensor 22 that outputs a load signal S1 corresponding to the opening degree of the accelerator pedal not shown, and a side brake signal S3 when the side brake (not shown) is activated. The side brake sensor 23 is connected.

The automatic transmission controller 12 also functions as a start control means, and in its memory, in addition to the control program shown in FIG. 2, a data table (not shown) for obtaining the duty ratio corresponding to the load signal used during the start processing. Or)
A data table (not shown) of the setting range of the change with time of the difference between the engine rotation and the clutch output shaft rotation, an output data table of the operation signal to the electromagnetic valve 13 of the gear shift unit corresponding to the shift signal used during the shift processing, A data table (not shown) for selecting a gear stage based on the vehicle speed signal and the load signal is stored.

The case of carrying out the method of the present invention using the automatic transmission apparatus shown in FIG. 1 will be described together with the control program of the automatic transmission controller 12. In addition, the code | symbol c in FIG. 2 shows a control step.

When the control program starts, the engine starting process is performed based on the inspection of each part, the reading of the input signal, and other preprocessing (step 1). After the engine is started, in step 2, the vehicle speed is a specified value (for example, 2 to 3 km /
h) Determine whether the vehicle is stopped or running if it is below or above. When the process proceeds to step 3 on the YES side, which is the stop side, it is determined whether or not the side brake signal S3 is present, that is, whether or not the side brake is pulled and is held at the braking position, and if YES, the process returns to step 2. , NO to start the process of step 4. Here, first, an operation signal is output to both solenoid valves 8 and 9, the clutch is disengaged, the gear train of the transmission is arranged in the starting stage, and when the accelerator depression amount (based on the load signal) exceeds the specified value. The clutch is gradually returned in the joining direction, the engine rotation and the rotation of the clutch output shaft are gradually brought close to each other, and when the both rotations coincide with each other, the clutch is completely joined to perform the start control, and the routine returns.

It should be noted that when the process proceeds from step 2 to the traveling side which is the NO side, the shift process of step 5 is proceeded to. In this gear shifting process, for example, based on a gear shift signal, a vehicle speed signal, a load signal S1, etc., the clutch is first disengaged, and the electromagnetic valve of the gear shift unit 6 is in between.
An operation signal is output to 13 for switching operation, and the gear train of the transmission 5 is switched to the selected target gear position, and thereafter both solenoid valves 8 and 9 are operated to engage the clutch 4. , Return.

As described above, according to the method of the present invention, when the stopped vehicle starts, first, the side brake is returned from the braking position to the release position, and the start process is started unless the side brake signal is released. Never. In other words, if the side brake that indicates the driver's intention to start is not released, even if the gear train of the transmission enters the start stage and the load signal exceeds the specified value due to misoperation or mischief of a child, You can prevent the risk of sudden start.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an automatic transmission that can be used in the method of the present invention, and FIG. 2 is a flowchart of a control program incorporated in the automatic transmission controller in the same apparatus. 302 …… electromagnetic actuator, 12 …… automatic shift controller, 17 …… vehicle speed sensor, 22 …… load sensor, 23 …… side brake sensor, S3 …… load signal, S4 …… sidebrake signal.

Claims (1)

[Claims] 1. A fuel supply amount adjusting actuator for operating engine rotation of a vehicle, a load sensor for outputting a load signal of the engine, a vehicle speed sensor for outputting a vehicle speed signal corresponding to the speed of the vehicle, and Using a side brake sensor that outputs a side brake signal when the side brake of the vehicle is braking, and a start control means that controls the fuel supply amount adjusting actuator based on the load signal, the vehicle speed signal, and the side brake signal, A method of preventing an incorrect operation of starting a vehicle, characterized in that, after the side brake signal is released, when the load signal exceeds a specified value, the starting control means starts a process of starting the vehicle in a stopped state.