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Vehicle control apparatus

A control device, electronic control device technology, applied to vehicle components, transmission parts, transmission control, etc., can solve problems such as receiving wrong signals

Active Publication Date: 2017-05-10
JATCO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, as described in Patent Document 1, even if an abnormality of the electronic control device is detected, if the output of the signal to the communication line cannot be stopped, other electronic control devices may receive erroneous signals.

Method used

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  • Vehicle control apparatus
  • Vehicle control apparatus
  • Vehicle control apparatus

Examples

Experimental program
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Embodiment 1

[0017] figure 1 It is a schematic diagram showing the configuration of an FR-type automatic transmission realizing 7 forward speeds and 1 reverse speed according to the first embodiment, and an overall system diagram showing the control configuration of the automatic transmission. The automatic transmission of Embodiment 1 is connected to the engine Eg via the torque converter TC equipped with the lock-up clutch LUC. The rotation output from the engine Eg drives and rotates the pump impeller of the torque converter TC and the oil pump OP. The oil agitated by the rotation of the pump impeller is transmitted to the turbine through the stator to drive the input shaft Input.

[0018] In addition, an engine controller (hereinafter referred to as ECU) 10 for controlling the driving state of the engine Eg, an automatic transmission controller (hereinafter referred to as ATCU) 20 for controlling the shifting state of the automatic transmission, etc., and an output signal based on the...

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Abstract

In the vehicle control device: a second electronic control device (MCU30) determines whether a signal outputted from a signal transmission / reception circuit (20c) is normal or abnormal, and outputs a cutoff signal for cutting off a relay (23) upon determining that the signal is abnormal; upon detecting that the relay (23) has been cut off, a computation circuit (20b) outputs, to the signal transmission / reception circuit (20c), a command to stop the output of the signal; and the signal transmission / reception circuit (20c) stops the output of the signal upon detecting that the relay (23) has been cut off or receiving a command from the computation circuit (20b) to stop the output of the signal.

Description

technical field [0001] The present invention relates to a monitoring technology of an electronic control device which is a control device of a vehicle. Background technique [0002] As a technique for monitoring whether an electronic control device is operating normally, for example, the technique described in Patent Document 1 is known. In this publication, a plurality of electronic control devices monitor each other to detect an abnormality of a microcomputer. [0003] Vehicles in recent years are equipped with a plurality of electronic control devices that control a plurality of actuators. These devices can exchange information with each other, grasp their respective control states, and control the vehicle as a whole. Since each electronic control device separately performs arithmetic processing, each electronic control device needs to share identifiable common information. Then, a communication line (for example, a CAN communication line) for transmitting and receivin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02B60R16/023F16H59/68F16H61/12
CPCB60R16/02B60R16/023F16H59/68F16H61/12B60R16/03F16H57/0436
Inventor 赤井伸成西冈典昭
Owner JATCO LTD
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