JPS60248443A - Engine starting device for automatic transmission installed car - Google Patents

Abstract

PURPOSE:To facilitate the urgent start of a car by stepping in a step-in brake with a range indication being left at R, D, 2, 1, and operating a starter to start up an engine. CONSTITUTION:Normally, an automatic transmission controlling unit B controls a transmission C according to first and second type indicating signals corresponding to position indication from an indication means A. When an engine stopped at a junction, etc. and a non-operation of engine detecting means D detected the non-operation condition of the engine and, when a brake detecting means E detected the operation of brake, a control means F always generates the first type signal forcibly in the automatic transmission controlling unit B based on the second type signal generated by the indication means A. Thereby, the unit B controls the transmission C so as to be unable to drive a car to travel, while enabling the engine to be started by operating a starter.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an engine starting device for a vehicle equipped with an automatic transmission, which facilitates engine starting in a vehicle equipped with an automatic transmission.

[Prior art]

Conventionally, in automatic transmissions, P, R, N, D.

It has five range positions (2.1), and only when the shift lever is operated to the P or N position, the starter is allowed to operate and the engine can be started. In addition, in recent years, for example, as shown in Japanese Patent Application Laid-Open No. 58-211060, the above P,
R, N, D, 2゜1 are configured by switches, etc., and the position of any of them is indicated by switch operation (range instruction)
The first type of instruction signal (instructing P, N range) or the second type instruction signal (R, D
, 2. There is a device that generates a lunge instruction signal) and electrically controls the transmission in response to the first and second type instruction signals. In this type of device as well, the starter is permitted to operate and the engine can be started only when the range position of the P arm is indicated.

However, in such a vehicle, when the vehicle stops at an intersection, railroad crossing, etc. while driving in D range, if the engine stops operating for some reason, there is no way to restart the engine. In this case, it is necessary to again indicate the P or N range position, operate the starter to start the engine, and then return to the D range, which is a problem in that the operation is very cumbersome. In particular, in cases such as when the engine suddenly stops working at a railroad crossing, even though it is necessary to start the vehicle urgently, the vehicle cannot be started unless the above steps are taken. Therefore, it takes time to start the vehicle. Moreover, in such a case, a situation may occur in which the user gets upset and forgets to change the range as described above, and is unable to start the engine forever.

[Problem that the invention seeks to solve]

The present invention has been made in view of the above-mentioned problem, and is aimed at providing a range position such as the above-mentioned P and N ranges that allows the engine of a vehicle to start when the engine has stopped operating for some reason at an intersection, railroad crossing, etc. This makes it possible to start the engine even if the engine is not in use.

[Means for Solving the Problems] In order to achieve the above-mentioned problems, the present invention, as shown in FIG. an instruction means A that generates a second type instruction signal in response to a range instruction to a position where the vehicle is driven to travel;
In response to the first type instruction signal, the transmission C is controlled so that the vehicle cannot be driven and the engine is started by operating the starter;
In a vehicle equipped with an automatic transmission, the vehicle is equipped with an automatic transmission control device B that controls a transmission C so that the vehicle can be driven in response to a different mode signal, and also prohibits operation of the starter. The brake detection means detects the operating state of the brake to maintain the stopped state, the engine non-operating state detecting means E detects the non-operating state of the engine, and the engine non-operating state detecting means E detects the non-operating state of the engine. and when the operating state of the brake is detected by the brake detecting means, the automatic transmission control device B is forced to control the automatic transmission control device B regardless of the generation of the second type signal from the indicating means A. Control means F for applying one type of signal
It is characterized by having the following.

[Effect]

In the present invention configured as described above, the automatic transmission control device B normally controls the transmission C in response to the first type and second type instruction signals corresponding to the position instruction from the instruction means A. Therefore, when the first type instruction signal is applied to the automatic transmission control device B, the transmission C is controlled so that the vehicle cannot be driven, and the engine is enabled to start by operating the starter. When two types of instruction signals are applied, the transmission C is controlled so that the vehicle can be driven, and the starter is prohibited from operating.

In addition, if the engine stops operating for some reason at an intersection, railroad crossing, etc., the engine non-operation detection means detects the engine non-operation state,
Further, when the brake detection means E detects a brake operation by the vehicle driver to stop the vehicle, the control means F forces the first type signal even if the second type signal is generated from the instruction means A. This occurs in the automatic transmission control device B.

Therefore, the automatic transmission control device BfJ is controlled so that the transmission C cannot be driven to drive the vehicle, and is controlled so that the engine can be started by the start operation. Therefore, under this condition, the engine can be started by operating the key switch to operate the starter.

In this way, once the engine has been started, for example, if the second type of instruction signal from the instruction means A is applied to the automatic transmission control device B when the brake operation is released, the automatic transmission control device B can immediately start the engine. Can start.

〔Effect of the invention〕

Since the present invention is constructed and operates as described above,
If the engine stops operating for some reason at an intersection, railroad crossing, etc., the brakes can be operated even if the vehicle is not in a range such as P or N that allows the engine to start. The engine can be started when the vehicle is brought to a standstill, which has the excellent effect of eliminating the need for troublesome operations unlike conventional ones.

〔Example〕

The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 2 is a configuration diagram showing one embodiment thereof. In this Fig. 2, 1 is an engine rotation sensor that generates a rotation pulse according to the engine rotation speed, 2 is a brake switch that detects the depression state of the foot brake, and 3 is the state that the vehicle key is inserted into the starter terminal. This is the starter switch to detect. 4 is a range indicator, as shown in Figure 3, P, R,
N.D.

This device has 2.1 switches (of a mechanism in which only one of them is held closed) and generates an electric signal (range instruction signal) corresponding to the switch that is held closed.

Reference numeral 5 denotes a microcomputer that executes digital arithmetic processing using software according to a predetermined control program, which executes arithmetic processing for automatic gear shifting, which will be described later, and generates a range command in accordance with the arithmetic processing.

6 is an automatic transmission which receives range commands from the microcomputer 5 and shifts between parking (P), reverse (R), neutral (N), 1st gear, 2nd gear, 3rd gear, and overdrive for forward movement. It performs variable speed driving, and in particular, when receiving a D range command from the microcomputer 5, it changes speed between 1st speed, 2nd speed, 3rd speed, and overdrive based on signals from a vehicle speed sensor and throttle opening sensor (not shown). I do. Although the detailed structure of the automatic transmission 6 is not shown in the drawings, the engine can be started by the starter only when the automatic transmission 6 is in the P or N range, as usual.

The operation of the above configuration will be explained.

Now, in a vehicle equipped with each component shown in FIG.
When the vehicle key is inserted at the start of driving, each electrical system is activated by receiving power from the on-board battery. The microcomputer 5 then enters the operating state by receiving a stabilized voltage from the on-vehicle battery via the stabilized power supply circuit. Note that at the start of this operation, it is necessary to turn on and hold the P or N switch of the range indicator 4 in order to start the engine.

When the microcomputer 5 starts operating, it first sets the registers, counters, latches, etc. in the microcomputer 5 to the initial state necessary to start the arithmetic processing (this initial setting includes an operation to reset the stalled flag, which will be described later). ), and then the arithmetic processing shown in FIG. 4 is repeatedly executed.

In the arithmetic processing shown in FIG. 4, first, in step 101, the engine rotational speed is calculated based on the rotational pulse from the engine rotational sensor 1, and in step I02, it is determined from the engine rotational speed whether the engine is stopped.

Since the engine is stopped at the time of starting operation, the determination becomes YES. At the start of this operation, if the driver operates the accelerator to start the engine without pressing the foot brake, no brake signal is generated from brake signal notch 2, so the next step 103 is determined. becomes No. Then, the process proceeds to step 111, where a range instruction signal (in this case, a P or N instruction signal) is read from the range indicator 4, and a P or N range instruction is generated to the automatic transmission 6 at step 112. Accordingly, the automatic transmission 6 receives the P or N range command and drives to the parking or neutral state.

Under this condition, the scooter can be operated and the engine started by inserting the vehicle key into the starter terminal.

When the engine starts rotating due to this engine start,
When step 102 is reached, the determination becomes No, and the process proceeds to step 107, where it is determined whether the engine rotation speed is equal to or higher than the rotation speed for the idling state. When the engine speed is quite low, the judgment will be NO,
Does not perform gear change control. This is to prevent the engine from stopping due to gear change control when the engine speed is low.

Thereafter, when the engine speed increases and the determination in step 107 becomes YES, the process proceeds to step 108, where it is determined whether or not the engine stall flag is set. At this time, since the engine stall flag has been reset in the initial settings, the determination becomes NO and the process proceeds to step 111.

Thereafter, the arithmetic processing from step 101 to 111.112 via 102.107.108 is repeatedly executed,
A command corresponding to the range instruction at that time is generated to the automatic transmission 6 to perform automatic gear shifting.

Under such conditions, if the engine stops for some reason when the range instruction from the range indicator 4 is R, D, or 2.1, the process proceeds to step 102. When it arrives, the verdict is YES
become. At this time, if the foot brake is not operated, the process proceeds to step 111 via step 103.

In such a situation, by depressing the foot brake without changing the range instruction, the engine can be started by operating the starter through the following calculation process.

That is, by depressing the foot brake, a brake signal is generated from the brake switch 2, and when step 103 is reached, the determination is YES and the process proceeds to step 104. At this time, if the vehicle key has not yet been inserted into the starter terminal and the starter signal has not been generated from the starter switch 3, the determination is NO and step 111
However, the starter must be activated (when the vehicle key is inserted into the starter terminal, a starter signal is generated from the starter switch 3, so the determination in step 104 is YES.Then, the process advances to step 105 to set the engine stall flag). , the process proceeds to step 106 to generate an N range signal to the automatic transmission 6.As a result, the automatic transmission 6 receives the N range command and is driven to the neutral state.Therefore, the starter is operated to start the engine. It can be performed.

Then, when the engine rotates and reaches step 108 via steps 102 and 107, the determination becomes YES because the engine stall flag has been set, and the process proceeds to step 109. In this step 109, it is determined based on the signal from the brake switch 2 whether or not the foot brake has been released, and if a brake signal is generated before the brake switch 2, the determination is NO.
, and the N range command to the automatic transmission 6 is not released yet.

When the foot brake is released in order to start the vehicle from this state, the brake switch 2 no longer generates a rebrake signal, so when step 109 is reached, the determination becomes YES, and the engine stall flag is reset in step 110. After that, the arithmetic processing from step 111 onwards is executed.

Then, through the arithmetic processing in steps 111 and 112, the range instruction given by the range indicator 4 is transmitted to the automatic transmission 6, and the vehicle can be started in the previous range.

According to the embodiment described above, the range instructions can be changed to R, D, 2, etc. not only when restarting the engine when it suddenly stops at an intersection, railroad crossing, etc., but also when starting the engine normally.
By stepping on the foot brake with the switch set to 1, the starter can be operated to start the engine.

In the above embodiment, the brake detecting means detects the depression state of the foot brake, but the operation state of the handbrake may also be detected, and either the foot brake or the handbrake may be detected. The operating state of the controller may be detected.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of the present invention, Fig. 2 is an overall block diagram showing an embodiment of the present invention, Fig. 3 is a block diagram showing the switch part of the range indicator, and Fig. 4 is a microcomputer. 2 is a calculation flowchart showing calculation processing of FIG. DESCRIPTION OF SYMBOLS 1... Engine rotation sensor, 2... Brake switch, 4... Range indicator, 5... Microcomputer, 6... Automatic transmission. Representative Patent Attorney Takashi Okabe Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] +11 A first type instruction signal is generated in response to a range instruction to a position where the vehicle is not driven to travel, and a second type instruction signal is generated in response to a range instruction to a position where the vehicle is driven to travel. controlling the transmission to a state in which the vehicle cannot be driven in response to the instruction means that generates the instruction signal and the first type instruction signal, and controlling the transmission to a state where the vehicle cannot be driven and to enable the engine to be started by operating the starter;
Further, in a vehicle equipped with an automatic transmission, the automatic transmission control device is configured to control the transmission so as to drive the vehicle in response to the second type mode signal, and to prohibit operation of the starter. Brake detection means for detecting the operating state of a brake that maintains the vehicle in a stopped state; Engine non-operation detection means for detecting the non-operating state of the engine; and the engine non-operating state detection means detecting the non-operating state of the engine. and when the brake detecting means detects the operating state of the brake, the first type signal is forcibly sent to the automatic transmission control device regardless of the generation of the second type signal from the indicating means. An engine starting device for a vehicle equipped with an automatic transmission, comprising a control means for applying a (2) After the control means forcibly applies the first type signal to the automatic transmission control device, when the brake detection means detects a non-operating state of the brake, the control means receives a second signal from the instruction means. An engine starting device for an automatic transmission-equipped vehicle according to claim 1, wherein a seed signal is applied to the automatic transmission control device.