Method and device for controlling device
First Claim
1. A car control method comprising the steps of:
- detecting drive force and wheel torque to be applied to each drive wheel;
calculating car body drive force from the above detected drive force and wheel torque;
extracting at least one frequency band fluctuating component of the calculated car body drive force; and
driving or braking the wheel or providing vibration to the wheel based on the extracted fluctuating component of the car body drive force to control the running state of the car.
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Accused Products
Abstract
A car control apparatus comprising a wheel sensor 13, wheel torque calculating means 23 for calculating wheel torque from the wheel speed, drive force detecting means 12 for detecting drive force generated by an electric motor 3, car body drive force calculating means 24 for calculating car body drive force from the above drive force and wheel torque, car body drive force fluctuating component extracting means 25 for extracting multiple frequency band fluctuating components of the car body drive force, and drive or braking force control unit 22 for controlling the running state of a car, wherein
drive or braking force to be applied to each wheel is obtained from main drive force, slip ratio control drive force and tire disturbance compensation drive force calculated based on the extracted fluctuating components of the car body drive force and supplied to a motor controller 11 to drive or brake the drive wheel 2 and apply micro-vibration to the tire in order to suppress micro-vibration generated between the tire and the road surface, thereby making it possible to improve the road holding properties of the tire and the driving stability of the car by compensating for disturbance applied to the tire.
50 Citations
29 Claims
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1. A car control method comprising the steps of:
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detecting drive force and wheel torque to be applied to each drive wheel;
calculating car body drive force from the above detected drive force and wheel torque;
extracting at least one frequency band fluctuating component of the calculated car body drive force; and
driving or braking the wheel or providing vibration to the wheel based on the extracted fluctuating component of the car body drive force to control the running state of the car. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A car control apparatus comprising:
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means of detecting the wheel speed of each drive wheel;
means of calculating wheel torque from the detected wheel speed;
means of detecting drive force applied to the drive wheel;
means of calculating car body drive force from the drive force and wheel torque;
means of extracting at least one frequency band fluctuating component from the calculated car body drive force; and
running state control means for controlling the running state of a car based on the extracted fluctuating component of the car body drive force. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29)
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25. A car control apparatus comprising:
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means of detecting the wheel speed of each drive wheel;
means of extracting at least a 10 Hz to 10 kHz frequency band fluctuating component of the detected wheel speed; and
running state control means for correcting drive or braking force generated by a motor for driving or braking the drive wheel with the extracted fluctuating component of the wheel speed.
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Specification