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Vehicle control system

A vehicle control device and control device technology, applied in the direction of adaptive control, hybrid vehicle, general control system, etc., can solve the problems of increasing cost and not being considered as the best cost

Active Publication Date: 2006-01-18
HITACHI ASTEMO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0034] The problem for the practical use of a highly reliable vehicle control device is to achieve high reliability without greatly increasing the cost. However, in the conventional technology, a main controller or a part of the control unit is constructed by complicated hardware such as redundancy. It is not yet considered the optimal system configuration in terms of cost to achieve failure operation

Method used

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Experimental program
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Embodiment 1

[0136] First, the basic configuration of the vehicle control device of the present invention will be described with reference to FIG. 1 .

[0137] The vehicle control device has a main computer (command controller) 1, a sensor slave computer (sensor controller) 2, and an actuator slave computer (actuator controller) 3. These parts are wired, wireless, and bus-type , mesh, star, and ring network N1 can be connected in two directions for data communication.

[0138] The host computer 1 is an instruction controller for calculating a control target value, and has a main control function (main control device) 1A.

[0139] A sensor 4 for observing (measuring) the state of a control object is connected to the sensor device slave computer 2 . The sensor slave computer 2 has a sensor processing function (sensor processing means) 2A for processing sensor signals supplied by the sensor 4 .

[0140] The actuator slave computer 3 is connected with the actuator 5 for the control object. ...

Embodiment 2

[0249] An integrated vehicle control device for a next-generation vehicle and an autonomous decentralized control platform to which the vehicle control device of the present invention is applied will be described with reference to FIG. 13 .

[0250] The purpose of the autonomous decentralized control platform is to achieve high reliability, real-time processing, and scalability in vehicle control at low cost.

[0251] As "autonomous decentralization", it is one of the highly reliable decentralized system models in the field of control. Computation subjects called nodes corresponding to cells in living things are loosely combined systems where common data called data areas are placed.

[0252] In addition, for details on "self-discipline decentralization", please refer to "Proposal for the concept of self-discipline decentralization" by Shinji Mori, Miyamoto Niji, and Ihara Koichi, Journal of Electrical Society C V01.104No.12pp.303-310(1984) , and K. Mori: Autonomous Decentral...

Embodiment 3

[0323] Embodiment 3 of the vehicle control device of the present invention will be described with reference to FIG. 22 . FIG. 22 is shown by extracting the parts related to the vehicle control device, especially the brake control and steering control.

[0324] This vehicle control device has a steering angle sensor 41 for measuring the rotation angle of the steering wheel 51 and a brake pedal position sensor 42 for measuring the depression amount of the brake pedal 52 as sensors for detecting the driver's request, and serves as an operation amount generating node. , interpreting the driver's intention from the signal of the sensor that detects the driver's request and controlling the vehicle comprehensively together with signals from the sensor that detects the state of the vehicle not shown, such as an acceleration sensor, a yaw rate sensor, and a wheel speed sensor Sporty vehicle motion comprehensive control ECU30.

[0325] This vehicle control device further has, as an act...

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Abstract

A vehicle control device includes a sensor controller which uses the network connection to obtain sensor signals that represent the state quantity of a vehicle and the manipulated variable of a driver, a command controller which generates the control target value according to the sensor signals which are obtained by the sensor controller and an actuator controller which receives the control target value from the command controller to actuate the actuator for controlling the vehicle. The actuator controller is equipped with a control target value generation device which generates the control target value according to the sensor value of the sensor controller that is received by the actuator controller on the internet when the control target value generating from the command controller is abnormal. The actuator is controller through the control target value which is generated from the control target value generation device. The vehicle control device does not improve the prolixity degree of every controller above the required level. Through preventing errors in the whole system, the device can guarantee the reliability, the real-time character and the expansibility with simple ECU composition and low cost.

Description

technical field [0001] The present invention relates to a vehicle control device (vehicle control system) for controlling the running state of a vehicle, and more particularly to a vehicle control device for driving, steering, and braking a prime mover of a vehicle such as an automobile by electronic control. Background technique [0002] Conventionally, as a vehicle control device, there is an operation control device that collectively controls control devices related to braking force, driving force, and steering angle by an electronic control device constituting one host (for example, Patent Document 1). [0003] In recent years, with the goal of improving the driving comfort and safety of automobiles, it is not a mechanical combination, but an electronic control that reflects the driver's acceleration, steering, braking, etc. to the driving force and steering force of the vehicle. , The development of the vehicle control device on the braking force generating mechanism ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/00H04L12/40B60W50/00
CPCY02T10/6286
Inventor 吉村健太郎樱井康平金川信康守田雄一朗高桥义明黑泽宪一箕轮利道星野雅俊中塚康弘岛村光太郎恒冨邦彦佐佐木昭二
Owner HITACHI ASTEMO LTD
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