Vehicle control system
First Claim
1. An actuator controller interconnected via a network to a sensor controller that receives sensor signals and a command controller that generates a control command based on the sensor signals received by said sensor controller, the actuator controller receiving the control command from said command controller and operating an actuator to control a vehicle, the actuator controller comprising:
- a processor; and
a memory coupled to the processor, the memory storing programmed instructions that are executed by the processor;
wherein said processor is programmed todetermine whether an error has occurred in the command controller;
control said actuator based on the control command received from the command controller when the error has not occurred; and
control said actuator based on the sensor signals received by said sensor controller and received by said actuator controller via the network when the error has occurred in said command controller;
wherein said sensor controller operates as deceleration instruction means, and said command controller operates as vehicle motion integrated control means for controlling a vehicle motion status, andwherein when the error has occurred in said command controller, said actuator controller controls a braking force in accordance with an operation amount applied through said deceleration instruction means.
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Accused Products
Abstract
A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network. The actuator controller includes a control target value generating unit for generating a control target value based on the sensor signals taken in by the sensor controller and received by the actuator controller via the network when the control target value generated by the command controller is abnormal, and controls the actuator in accordance with the control target value generated by the control target value generating unit.
50 Citations
12 Claims
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1. An actuator controller interconnected via a network to a sensor controller that receives sensor signals and a command controller that generates a control command based on the sensor signals received by said sensor controller, the actuator controller receiving the control command from said command controller and operating an actuator to control a vehicle, the actuator controller comprising:
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a processor; and a memory coupled to the processor, the memory storing programmed instructions that are executed by the processor; wherein said processor is programmed to determine whether an error has occurred in the command controller; control said actuator based on the control command received from the command controller when the error has not occurred; and control said actuator based on the sensor signals received by said sensor controller and received by said actuator controller via the network when the error has occurred in said command controller; wherein said sensor controller operates as deceleration instruction means, and said command controller operates as vehicle motion integrated control means for controlling a vehicle motion status, and wherein when the error has occurred in said command controller, said actuator controller controls a braking force in accordance with an operation amount applied through said deceleration instruction means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification