JPH03281453A - Trouble shooting device for vehicle - Google Patents

Abstract

PURPOSE:To surely confirm the action sound of an actuator by providing a drive signal generation part, giving drive signals individually driving actuators, and a voice signal part generating individual voice signals corresponding to the drive signals. CONSTITUTION:When the drive test of actuators is commenced, an actuator to be an object of trouble shooting is selected and the actuator's drive switch is turned on to drive the actuator. When a sound, given at the time of operation, is confirmed, a test is finished as with no failure considered. On the other hand, when a sound, given at the time of operation, can not be confirmed, a pseudo sound switch is operated to generate a pseudo sound, imitated as the action sound of an actuator to be an object, from a pseudo sound generator 4, a voice signal is outputted from a speaker 6, and the pseudo sound is confirmed to recompare with the action sound of the actuator. By this constitution, the actual action sound of the actuator can be heard to be confirmed while a correct action sound is confirmed by the pseudo sound, consequently the action sound of the actuator can surely be confirmed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vehicle failure diagnosis device that checks whether or not there is a failure in electrical components in a vehicle.

[Prior art]

Conventionally, as the number of electronic electrical components increases in vehicles, the amount of wire harnesses becomes enormous, resulting in increased weight and poor installation of wiring, etc., so multi-function switches have not been used. It has been known to attempt to reduce the amount of wire harness by using wire harnesses.

However, with multi-function switches, only the switch functions that can be instructed by the occupant are grouped together, and no consideration is given to the display or output of information that notifies the vehicle of abnormal conditions. The amount of harness could not be reduced sufficiently.

Therefore, a transparent touch switch is provided on the display screen of the display device, and the information input through the touch switch is detected to control the display contents of the display device, and also to control the external device according to the input information. transmits a signal, receives a control state signal from an external device, displays the control state on the display screen of the display device, and warns of the abnormal state in response to an abnormal state detection signal given to the display device from the outside. The amount of wiring harness can be reduced by displaying the display, using an alarm device to notify the user with an alarm sound, and time-division multiplexing the data transmission light between the external device and the part that integrates the switch and display. Some methods have been proposed to reduce this (for example, see Japanese Patent Laid-Open No. 62-4658).

[Problems to be Solved by the Invention] However, in the above-mentioned conventional devices, the operating state of actuators such as pumps and solenoids is checked,
If there is an abnormality, it detects the abnormal state and issues a warning, but in this case, the operating state that can be checked is only the result of turning on and off the actuator, and the method of operation such as speed and time delay can be checked. The problem was that I couldn't do it.

The purpose of the present invention is to solve the above-mentioned problems and provide a fault diagnosis device for a vehicle that can check the reliability of the on/off results of an actuator and the manner of operation such as the speed and time delay of the on/off operation. It is to provide.

(Means for Solving the Problems) In order to achieve the above object, a fault diagnosis device for a vehicle of the present invention is a fault diagnosis device connectable to a diagnostic connector provided in a vehicle. A drive signal generation section that emits drive signals to drive multiple actuators (pumps, solenoids, etc.) individually, and a separate audio signal that is the operating sound of each actuator in response to the drive signal to each actuator. It is equipped with an audio signal section.

[Effect]

The vehicle fault diagnosis device of the present invention configured as described above is connected to a diagnostic connector provided in the vehicle such as by connecting to a junction box, and is connected to a plurality of actuators such as pumps and solenoids provided in the vehicle. A drive signal for driving each of the actuators is generated from a drive signal generating section, and the actuator corresponding to each drive signal is driven to confirm the sound of its operation.

In addition, in response to drive signals to individual actuators,
The operation of the actuators is checked by emitting individual audio signals, which are pre-stored operating sounds of each actuator, from the audio signal section and comparing them with the operating sounds of the actuators.

〔Example〕

Embodiments of the present invention will be described based on the drawings.

In FIG. 1, a vehicle failure diagnosis device 1 has a built-in microcomputer 2, and an operation switch section 3 for externally setting a failure diagnosis operation on the input side of the microcomputer 2.
is connected to the output side of the microcomputer 2, and a drive signal generator 4, a pseudo sound generator 4, and a speaker 5 are connected to the output side of the microcomputer 2.
An audio signal section consisting of the above and a display 7 are connected.

A connector 8 is connected to the drive signal generating section 4 and led out to the outside.

A connector 13 is connected to a junction box 1o that is installed in the engine room 9 and connects a plurality of actuators such as a pump 11 and a solenoid 12 to a microcomputer (not shown) mounted on the vehicle.

When using the vehicle failure diagnosis device 1, the connector 8 of the vehicle failure diagnosis device 1 is connected to the connector 13 on the vehicle side.

FIG. 2 shows an example of the vehicle fault diagnosis device 1, which includes a display 7 that displays the operating status of the actuator, a display screen 13 that displays the actuator to be driven, and a floppy disk that is preprogrammed with diagnostic operations. A floppy drive device I4 to be inserted is provided, and the display screen 13 includes a touch screen type on switch 31, an off switch 32, and a pseudo sound switch 3.
A switch section 3 consisting of 3 is arranged.

In the vehicle fault diagnosis device (■), by replacing the floppy disk, the actuator to be fault diagnosed is selected and displayed on the display screen 13, and a drive signal is issued by operating the on switch 31, and the actuator is turned off.・
It is stopped by operating the switch 32.

Further, when the pseudo sound switch 33 is operated, an audio signal (pseudo sound) which is the operation sound of the target actuator stored in advance is emitted.

Furthermore, by programming diagnostic operations for a plurality of actuators on two floppy disks, it is also possible to select the actuator to be subjected to failure diagnosis simply by operating the switch section 3.

Next, the failure diagnosis operation will be explained based on FIG. 3.

When the actuator drive test is started, the floppy disk is replaced, the actuator to be subjected to failure diagnosis is selected, the actuator drive switch is turned on (ON switch 31 is turned on), and the actuator is driven.

When the sound emitted by the actuator during operation can be confirmed, the test is concluded as there is no failure.

On the other hand, if the sound emitted by the actuator during operation cannot be confirmed, the pseudo-stand switch 33 is operated to cause the pseudo-sound generator 4 to generate a pseudo-sound, which is the operating sound of the target actuator, and the speaker 6 Output the audio signal, confirm the simulated stand, and compare it again with the actuator operating sound.

With this configuration, it is possible to hear and confirm the actual operating sound of the actuator while confirming the correct operating sound using the simulated stand, so that the actuator operating sound can be reliably confirmed.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

A drive signal generator generates drive signals that individually drive multiple actuators installed in the vehicle, drives the actuator corresponding to each drive signal, and confirms the sound of its operation. Correspondingly,
The audio signal section can emit individual audio signals (simulated stand) that are the operating sounds of each actuator that are stored in advance, so by comparing the actuator operating sounds with the simulated stand, you can determine the actuator's operation. sound f
It is possible to ensure I-certification.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a schematic configuration diagram, FIG. 2 is a front view showing an example of a failure diagnosis device, and FIG. 3 is a flowchart of a failure diagnosis operation. ■... Vehicle failure diagnosis device, - Microcomputer, - Switch section, - Drive signal generator, - Pseudo sound generator, - Speaker, 7... Display unit.

Claims (1)

[Claims] (1) A failure diagnosis device that can be connected to a diagnostic connector installed in a vehicle, and includes a drive signal generation unit that generates drive signals that individually drive multiple actuators installed in the vehicle, and 1. A fault diagnosis device for a vehicle, comprising: an audio signal section that emits individual audio signals in response.