VEHICLE CONTROL SYSTEM
First Claim
1. A vehicle control system comprising a plurality of actuator driving means for controlling actuators in accordance with a driver'"'"'s demand and a vehicle status, and communication means for interconnecting said plurality of actuator driving means, thereby controlling at least one of driving, steering and braking of a vehicle,wherein each of said actuator driving means has control method selecting means for selecting an actuator control method based on an operation state of itself and operation states of the other actuator driving means.
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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.
107 Citations
12 Claims
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1. A vehicle control system comprising a plurality of actuator driving means for controlling actuators in accordance with a driver'"'"'s demand and a vehicle status, and communication means for interconnecting said plurality of actuator driving means, thereby controlling at least one of driving, steering and braking of a vehicle,
wherein each of said actuator driving means has control method selecting means for selecting an actuator control method based on an operation state of itself and operation states of the other actuator driving means.
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3. A vehicle control system comprising a plurality of actuator driving means for controlling actuators in accordance with a driver'"'"'s demand and a vehicle status, and communication means for interconnecting said plurality of actuator driving means, thereby controlling at least one of driving, steering and braking of a vehicle,
wherein each of said actuator driving means has control method selecting means for selecting an actuator control method based on reception states of messages sent from the other actuator driving means via said communication means.
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5. A vehicle control system comprising at least one operation amount generating means for computing operation amount command values based on a driver'"'"'s demand and a vehicle status, a plurality of actuator driving means for controlling actuators in accordance with the operation amount command values from said operation amount generating means, and communication means for interconnecting said operation amount generating means and said plurality of actuator driving means, thereby controlling at least one of driving, steering and braking of a vehicle,
wherein each of said actuator driving means has control method selecting means for selecting an actuator control method based on an operation state of itself, operation states of the other actuator driving means, and an operation state of said operation amount generating means.
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7. A vehicle control system comprising at least one operation amount generating means for computing operation amount command values based on a driver'"'"'s demand and a vehicle status, a plurality of actuator driving means for controlling actuators in accordance with the operation amount command values from said operation amount generating means, and communication means for interconnecting said operation amount generating means and said plurality of actuator driving means, thereby controlling at least one of driving, steering and braking of a vehicle,
wherein each of said actuator driving means has control method selecting means for selecting an actuator control method based on reception states of messages sent from the other actuator driving means or said operation amount generating means.
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9. A vehicle control system comprising sensor means for detecting a driver'"'"'s demand and a vehicle status, at least one operation amount generating means for computing operation amount command values based on information from said sensor means, a plurality of actuator driving means for controlling actuators in accordance with the operation amount command values from said operation amount generating means or the information from said sensor means, and communication means for interconnecting said sensor means, said operation amount generating means and said plurality of actuator driving means, thereby controlling at least one of driving, steering and braking of a vehicle,
wherein each of said actuator driving means has control method selecting means for selecting one of a control method using the operation amount command value from said operation amount generating means, a control method using the information from said sensor means, and a control method of bringing said actuator into a predetermined state based on an operation state of itself, operation states of the other actuator driving means, and an operation state of said operation amount generating means.
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11. A vehicle control system comprising sensor means for detecting a driver'"'"'s demand and a vehicle status, at least one operation amount generating means for computing operation amount command values based on information from said sensor means, a plurality of actuator driving means for controlling actuators in accordance with the operation amount command values from said operation amount generating means or the information from said sensor means, and communication means for interconnecting said sensor means, said operation amount generating means and said plurality of actuator driving means, thereby controlling at least one of driving, steering and braking of a vehicle,
wherein each of said actuator driving means has control method selecting means for selecting one of a control method using the operation amount command value from said operation amount generating means, a control method using the information from said sensor means, and a control method of bringing said actuator into a predetermined state based on reception states of messages sent from the other actuator driving means or said operation amount generating means.
Specification