ADAPTIVE CRUISE CONTROL SYSTEM AND METHOD FOR VEHICLE
First Claim
1. An adaptive cruise control system, comprising:
- an adaptive cruise mode selection unit configured to select adaptive cruise modes to control speeds and relative distances for a host vehicle in different modes;
a data acquisition unit configured to acquire a vehicle state variable x(t);
a control unit configured to generate a vehicle control signal u(t) based on the vehicle state variable x(t);
a critic unit configured to evaluate a control performance according to the vehicle state variable x(t) and the vehicle control signal u(t), if a result of evaluation indicates that the control performance does not comply with a requirement, then the control unit and the critic unit perform an online leaning;
a gas pedal unit and a brake unit configured to be controlled respectively by using the vehicle control signal u(t) output from the control unit and data provided from a the vehicle inverse dynamics.
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Abstract
A vehicle adaptive cruise control system and method are provided. The adaptive cruise control system, comprising an adaptive cruise mode selection unit configured to select adaptive cruise modes to control speeds and relative distances for a host vehicle in different modes; a data acquisition unit configured to acquire a vehicle state variable x(t); a control unit configured to generate a vehicle control signal u(t) based on the vehicle state variable x(t); a critic unit configured to evaluate a control performance according to the vehicle state variable x(t) and the vehicle control signal u(t), if a result of evaluation indicates that the control performance does not comply with a requirement, then the control unit and the critic unit perform an online leaning; a gas pedal unit and a brake unit configured to be controlled respectively by using the vehicle control signal u(t) output from the is control unit and data provided from a the vehicle inverse dynamics. According to the system, the safety and personality is improved.
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Citations
20 Claims
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1. An adaptive cruise control system, comprising:
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an adaptive cruise mode selection unit configured to select adaptive cruise modes to control speeds and relative distances for a host vehicle in different modes; a data acquisition unit configured to acquire a vehicle state variable x(t); a control unit configured to generate a vehicle control signal u(t) based on the vehicle state variable x(t); a critic unit configured to evaluate a control performance according to the vehicle state variable x(t) and the vehicle control signal u(t), if a result of evaluation indicates that the control performance does not comply with a requirement, then the control unit and the critic unit perform an online leaning; a gas pedal unit and a brake unit configured to be controlled respectively by using the vehicle control signal u(t) output from the control unit and data provided from a the vehicle inverse dynamics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An adaptive cruise control method comprising steps of:
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selecting an adaptive cruise mode to control speeds and relative distances for a host vehicle;
acquiring a vehicle state variable x(t), as an input to a control unit;generating, by the control unit, a vehicle control signal u(t) based on the vehicle state variable x(t); evaluating, by a critic unit, a control performance according to the vehicle state variable x(t) and the vehicle control signal u(t), if a result of evaluation indicates that the control performance does not comply with a requirement, then performing, by the control unit and the critic unit, an online leaning; if the results of evaluation indicates that the control performance complies with the requirement, controlling a gas pedal unit and a breaking unit respectively by using the vehicle control signal u(t) and data provided from a vehicle dynamics inverse model. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification