JP2005248859A - Push start system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a push start system capable of matching the startability by changing the control value with respect to an engine startability by the operation. <P>SOLUTION: In the push start system, when a communication device 8 of portable equipment and a vehicle is authenticated by communication, and the authentication establishes, a knob 13 of a push switch 1 is pushed to work a starter motor 51, and an engine is started. There is provided with an engine control unit 7 to detect the engine condition, a controller 2 to stop the operation of the starter motor when judged as that the engine condition detected by the engine control unit 7 is in a complete explosion state, an ST relay 5, a judging condition changing part 21 to change the condition to judge as the complete explosion by the operation, and a push switch 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention belongs to a technical field of a push start system in which an engine is started without a key operation only by pressing a switch after a driver's portable device and a vehicle authenticate by communication.

In the conventional push start system, the engine is started and stopped by authentication with the remote control and the push switch operation, and when the push switch is pushed while stepping on the brake when the engine is stopped, cranking is started and the engine is started ( For example, see Patent Document 1.)
JP 2001-351453 (page 2-6, all figures)

However, in the conventional push start system, the engine start by the push switch is electronically controlled from the push switch ON signal input to the starter motor control. For this reason, the starter motor OFF control, which has been controlled by humans, will be electronically controlled. However, the engine startability changes due to factors such as ambient temperature and deterioration over time. In order to maintain this, it is necessary to adjust the judgment value for starting the engine.
When the engine start is determined based on the engine speed, if the determined value is different from the actual complete engine speed, the following phenomenon occurs.
<1> When the judgment value is low, the starter motor is turned off in a state where the engine is not completely exploded, and a situation in which the engine does not start occurs.
<2> When the judgment value is high, a situation occurs in which the starter motor continues to rotate even though the engine is completely detonated.

  The present invention has been made paying attention to the above-mentioned problems, and the purpose of the present invention is to provide a push start system that can perform matching of startability by changing the control value related to engine startability by operation. It is to provide.

In order to achieve the above object, according to the present invention, in a push start system in which a portable device and a vehicle authenticate by communication and a start switch is operated by pushing a push switch when authentication is established, The detection means for detecting the state of the engine, the starter control means for stopping the operation of the starter motor when the engine state detected by the detection means is determined to be a complete explosion state, and the conditions for determining the complete explosion state are changed by operation. And a determination condition changing means for performing the determination.
In addition, in claim 5, “OFF of the IGN power supply” also serves as engine OFF.

  Therefore, according to the first aspect of the present invention, it is possible to perform matching of startability by changing the control value relating to engine startability by operation.

  Hereinafter, an embodiment for realizing a push start system according to the present invention will be described based on Example 1 corresponding to the invention according to claims 1, 2, 3, 4, 5 and 6.

First, the configuration will be described.
FIG. 1 is a front view of a push switch of the push start system according to the first embodiment. 2 is a cross-sectional view taken along the line AA in FIG. FIG. 3 is a side view of the push switch of the push start system according to the first embodiment. 4 is a cross-sectional view taken along the line BB of FIG. FIG. 5 is a block diagram of the push start system according to the first embodiment. FIG. 6 is an explanatory diagram illustrating a display example of a meter of the push start system according to the first embodiment. FIG. 7 is a flowchart showing a flow of processing of switching control between the normal mode and the change mode of the push start system according to the first embodiment. FIG. 8 is a flowchart showing the process flow of the change mode of the push start system according to the first embodiment.

As shown in FIG. 5, the push start system of Embodiment 1 includes a push switch 1, a control device 2, an IGN relay 3, an ACC relay 4, an ST relay 5 (corresponding to the starter control means together with the control device 2), a starter motor. 51, meter 6 and engine control unit 7 are the main components.
As shown in FIGS. 1 to 4, the push switch 1 is provided with a box-shaped housing 11 having an opening on the bottom surface and a substrate 12 on the bottom surface.
A knob 13 (corresponding to a push portion) is provided on the upper surface of the housing 11 so as to be movable up and down within a predetermined range, and the knob 13 is biased upward by a spring 14 so as to be positioned at an almost upper limit position within the predetermined range. And arrange to push. This position is a position protruding from the upper surface of the housing 11.

A switch 16 is provided at a position below the knob 13 on the upper surface of the substrate 12, and a spherical portion 13 a that engages with the switch 16 is provided on the lower surface of the knob 13.
Accordingly, the switch 16 detects the switch ON every time the knob 13 is pressed.
A cylindrical rotation operation portion 15 (corresponding to a rotation portion) is rotatably provided on the outer periphery of the knob 13 protruding from the upper surface of the housing 11. That is, the knob 13 is positioned to protrude from the inner hole of the rotation operation unit 15.
An encoder 17 is provided on the upper surface of the substrate 12 below the rotation operation unit 15 and is engaged with the lower end of the rotation operation unit 15 so that the rotation is transmitted.

As a result, the encoder 17 detects the rotational position of the rotational operation unit 15, detects the switching of the OFF, ACC, and IGN switch positions, and the rotational operation.
A plurality of spherical recesses are formed on the outer peripheral surface of the rotation operation unit 15 corresponding to the position intervals of the OFF, ACC, and IGN positions on the circumference. By pressing the ball 18 that is biased by a spring, This produces a switching feeling.
On the upper surface of the housing 11, the characters “OFF”, “ACC”, and “IGN” are made translucent in accordance with the OFF, ACC, and IGN positions. A light-transmitting member is provided on the upper surface.
The LED 19 is provided on the substrate 12 below the portion of the housing 11 where the character is provided. When a rotation operation is detected, the LED 19 shines, and the position is transmitted to the operator by the character, and the position where the light shines changes. Communicate position changes with.

Next, a control block diagram of the push start system will be described with reference to FIG.
The position signal from the encoder 17 and the ON / OFF signal from the push switch 1 are connected to the control device 2.
The control device 2 includes a determination condition changing unit 21 (corresponding to a determination condition changing unit together with the push switch 1 and the air conditioner operation unit 9), and when the change mode is entered, the condition content is displayed on the meter 6; The condition is changed by an operation input from the push switch 1 and the encoder 17.
The meter 6 displays at least the scale portion with liquid crystal (condition display means), and displays the condition contents when the control device 2 performs control.
Further, the control device 2 sends a signal to the IGN relay 3, the ACC relay 4, and the ST relay 5 to cause the relay operation to turn ON / OFF the IGN power supply, ON / OFF the ACC power supply, and ON / OFF the starter motor 51. Manipulate.

Whether or not the engine has completely exploded in the control device 2 is determined based on information from the engine control unit 7 (corresponding to detection means).
In addition, the control device 2 performs authentication through communication with the portable device via the communication device 8 and validates the operation of the push switch 1 only when authentication is established.
Further, the control device 2 receives an operation from the air conditioner operation unit 9 of the air conditioner and uses it for operation input in the change mode.

Next, the operation will be described.
[Switching between normal mode and change mode]
FIG. 7 is a flowchart showing the flow of the switching process between the normal mode and the change mode executed by the control device of the push start system according to the first embodiment. Each step will be described below.

  In step S1, it is determined whether or not the IGN power supply is turned on. If it is turned on, the process proceeds to step S2, and if it is turned off, the process proceeds to step S6.

  In step S2, it is determined whether or not the immobilizer authentication is OK. If the authentication is OK, the process proceeds to step S3. If the authentication is not OK, the process proceeds to step S6.

  In step S3, after authentication is OK, it is determined whether the encoder 17 has rotated one step to the right and then one step to the left with the push switch 1 turned on within 10 seconds after the knob 13 is pressed. If so, the process proceeds to step S4, and if not, the process proceeds to step S6.

  In step S4, a condition changing process for determining complete explosion of the engine is performed as a change mode.

  In step S5, it is determined whether or not the IGN power is turned off. If it is turned off, the process proceeds to step S6. If not, the process proceeds to step S4.

  In step S6, as a normal control mode, input processing from the push switch 1, IGN relay 3, ACC relay 4, and ST relay 5 are controlled.

Change mode processing
FIG. 8 is a flowchart showing a flow of processing for changing the determination condition of engine complete explosion in step S4 of FIG. 7 executed by the control device of the push start system of the first embodiment. explain.

  In step S41, the meter display is changed to that relating to the change mode.

  In step S42, a change item is selected by an operation input from the push switch 1.

  In step S43, the setting of the selected change item is changed by operating the encoder 17.

  In step S44, setting of the oil temperature and the water temperature among the changed items is changed by the air conditioner set temperature switch.

[Push operation action]
In the push start system of the first embodiment, in order to start the engine, the driver carries the portable device and approaches the vehicle. When the driver approaches a predetermined distance, the portable device and the vehicle communication device 8 authenticate by communication.
If authentication is established, the operation of the push switch 1 is enabled by the control device 2.

In this state, “OFF” → “ACC ON” → “IGN ON” by turning the rotary operation unit 15 of the push switch 1 to the right, “IGN ON” → “ACC ON” → “OFF” by rotating the counterclockwise. Can be switched, and by pressing the knob 13 without stepping on the brake, "OFF"->"ACCON"->"IGNON"->"OFF", and by stepping on the brake and pressing the knob 13 Start the engine from any position.
In starting the engine, it is determined from the information from the engine control unit 7 that the engine has completely exploded. An example is engine speed.

[Changes to engine explosion conditions]
When the complete explosion condition of the engine is changed, an operation that does not occur by the normal operation of the push switch 1 is performed and the mode is switched to the change mode. In the first embodiment, after the switch 16 is turned on by pressing the knob 13, the encoder 17 is rotated one step to the right by the operation of the rotation operation unit 15 while the switch 16 is turned on within 10 seconds, and then to the left. Rotate one stage.
This is determined by the control device 2 in the process of step S3, and the change mode process of steps S4 (S41 to S44) is performed.
In the change mode, the meter is changed from the display state indicating the normal rotational speed shown in FIG. 6 (a) to the state where the rotational speed of 0 to 800 rpm shown in FIG. 6 (b) is displayed.

In this state, by the process of step S43, the encoder 17 is rotated by an operation to the rotation operation unit 15, and the number of rotations that becomes a complete explosion condition of the engine is changed.
Furthermore, the complete explosion conditions include engine oil temperature and engine water temperature. When changing the conditions, the temperature setting switch of the air conditioner that is the air conditioner operation unit 9 is operated to change the conditions.
When there is this change input, the judgment condition changing unit 21 overwrites the judgment value data of the complete explosion condition stored in a storage device (not shown) in the control device 2 or an external storage device.

Next, the effect will be described.
In the push start system according to the first embodiment, the effects listed below can be obtained.
(1) In the push start system in which the communication device 8 of the portable device and the vehicle authenticates by communication and the starter motor 51 is operated by starting the engine by pressing the knob 13 of the push switch 1 when the authentication is established. An engine control unit 7 that detects the state of the engine, a control device 2 that stops operation of the starter motor when the engine state detected by the engine control unit 7 is determined to be a complete explosion state, and an ST relay 5 that are determined to be a complete explosion state Since the judgment condition changing unit 21 and the push switch 1 that change the condition to be operated by the operation are provided, the control value relating to the engine startability can be changed by the operation to match the startability.
In a system that uses a key operation other than the push start system to start the starter, the starter motor is turned on for a shorter or longer time depending on the driver's habit and the driver's operation according to the vehicle's condition. To do.

In the push start system, the control device determines that the switch is ON, and the starter motor is operated until the engine completes explosion. However, if the control is performed, the starter motor cannot be operated until the driver's habit or the driver feels good feeling. Further, for example, when the vehicle environment is in a low temperature period or in an area, the engine is started, but there may be a control that the driver does not feel sufficient. On the other hand, the driver may feel wasteful for a long time.
Therefore, the ability to change the engine explosion conditions as in the push start system of Example 1 greatly improves the operational feeling of the push start system, and the keyless authentication system combines convenience and theft prevention. The person can operate the vehicle more comfortably.

  (2) Since the judgment condition changing unit 21 changes the condition by the operation input of the push switch 1, it is possible to reduce the cost and make the condition changing operation easy to understand for the operator without providing an adjustment device.

  (3) Since the meter 6 displays the condition change information of the judgment condition changing unit 21, the cost can be suppressed by not providing another display device, and the setting status can be easily understood by the operator.

  (4) Since the judgment condition changing unit 21 includes the normal control mode in step S6 for automatically changing the judgment condition and the change mode for changing the judgment condition by an operation input, control suitable for the user's own feeling is performed. Can be done.

  (5) The push switch 1 includes a knob 13 and a switch 16 that are turned ON / OFF by a pressing operation, and a rotation operation unit 15 that performs a rotation operation around the knob 13. The rotation operation unit 15 turns on the ACC power source. Or, to switch the IGN power supply to ON or OFF at the rotational position to OFF, push switch 1 operated to start the engine after authentication, turn the ACC power ON or OFF, turn the IGN power ON or OFF, It is easy to understand by combining the operation of shifting to the condition change operation mode or the operation of pressing the condition change operation and the operation of rotating.

  (6) Since the judgment condition changing unit 21 changes the condition by the operation input of the rotation operation unit 15, the operation input for changing the condition can be performed with an easy operation.

As mentioned above, although the push start system of this invention has been demonstrated based on Example 1, it is not restricted to these Examples about concrete structure, The summary of the invention which concerns on each claim of a claim As long as they do not deviate, design changes and additions are permitted.
For example, the information on the complete engine explosion is determined from information from the engine control unit, but the control device may determine from information from each sensor.
The push switch may have a different configuration from the push switch of the first embodiment as long as the engine is started by an operation of pressing after authentication.

It is a front view of the push switch of the push start system of Example 1. It is AA sectional drawing of FIG. It is a side view of the push switch of the push start system of Example 1. It is BB sectional drawing of FIG. It is a block diagram of the push start system of Example 1. It is explanatory drawing which shows the example of a meter display of the push start system of Example 1. FIG. It is a flowchart figure which shows the flow of a process of switching control of the normal mode and change mode of the push start system of Example 1. FIG. It is a flowchart figure which shows the flow of a process of the change mode of the push start system of Example 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Push switch 11 Housing 12 Board | substrate 13 Knob 14 Spring 15 Rotation operation part 16 Switch 17 Encoder 18 Ball 19 LED
2 Control device 21 Judgment condition changing unit 3 IGN relay 4 ACC relay 5 ST relay 51 Starter motor 6 Meter 7 Engine control unit 8 Communication device 9 Air conditioner operation unit

Claims (6)

In the push start system in which the portable device and the vehicle authenticate by communication, the starter motor is operated by pushing the push switch when the authentication is established, and the engine is started.
Detection means for detecting the state of the engine;
Starter control means for stopping the operation of the starter motor when it is determined that the engine state detected by the detection means is a complete explosion state;
Judgment condition changing means for changing the condition for judging the complete explosion state by operation;
A push start system comprising: In the push start system according to claim 1,
The determination condition changing means is
Change the condition by operating the push switch.
Push start system characterized by that. In the push start system according to claim 2,
The vehicle's instrument panel
Condition display means for displaying condition change information of the judgment condition change means,
A push start system characterized by comprising. In the push start system according to claim 2 or claim 3,
The determination condition changing means is
Automatic mode for automatically changing judgment conditions,
Manual mode for changing judgment conditions by operation input,
A push start system comprising: In the push start system according to claim 1 to claim 4,
Push switch
A push part that switches ON / OFF by pressing,
A rotating unit that performs a rotating operation around the push unit;
With
The rotating part is
Push start system characterized by switching ACC power to ON or OFF and IGN power to ON or OFF at the rotational position. In the push start system according to claim 5,
The determination condition changing means is
Change the condition by operating the rotary unit;
Push start system characterized by that.

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