Method and system for contolling the position of a servo motor in vehicle speed control systems for various operation conditions
First Claim
1. A method for controlling a position of a servo motor in a vehicle speed control system for various operation conditions, the method comprising:
- determining parameters of a polynomial which define desired positions of the servo motor for various vehicle speeds under normal operation conditions;
sensing a speed of the vehicle and generating a corresponding speed signal;
determining an initial desired position of the servo motor based on the speed signal;
determining whether the operation condition of the vehicle has deviated from the normal operation condition;
if so, determining a revised desired position of the servo motor based on the actual position of the servo motor and the initial desired position of the servo motor; and
controlling the servo motor based on the revised desired position of the servo motor.
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0 Petitions
Accused Products
Abstract
A method and system for accurately controlling a position of a servo motor in a vehicle speed control system for various operation conditions includes predetermined parameters of a polynomial which define desired positions of a servo motor for various vehicle speeds under normal operation conditions. A sensor senses a speed of the vehicle and generates a corresponding speed signal. A controller determines an initial desired position of servo motor based on the speed signal. The controller also determines whether the operation condition of the vehicle has deviated from the normal operation condition, and if so, determines a revised desired position of the servo motor based on the actual position of the servo motor and the initial desired position of the servo motor. Finally, the controller controls the servo motor based on the revised desired position of the servo motor.
4 Citations
18 Claims
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1. A method for controlling a position of a servo motor in a vehicle speed control system for various operation conditions, the method comprising:
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determining parameters of a polynomial which define desired positions of the servo motor for various vehicle speeds under normal operation conditions; sensing a speed of the vehicle and generating a corresponding speed signal; determining an initial desired position of the servo motor based on the speed signal; determining whether the operation condition of the vehicle has deviated from the normal operation condition; if so, determining a revised desired position of the servo motor based on the actual position of the servo motor and the initial desired position of the servo motor; and controlling the servo motor based on the revised desired position of the servo motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for controlling a servo motor in a vehicle speed control system for various operation conditions including predetermined parameters of a polynomial which define desired positions of the servo motor for various vehicle speeds under normal operation conditions, the system comprising:
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a sensor for sensing a speed of the vehicle and generating a corresponding speed signal; and a controller for determining an initial desired position of the servo motor based on the speed signal, determining whether the operation condition of the vehicle has deviated from the normal operation condition, and if so, determining a revised desired position of the servo motor based on the actual position of the servo motor and the initial desired position of the servo motor, and further for controlling the servo motor based on the revised desired position of the servo motor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification