STEERING CONTROL DEVICE FOR VEHICLE
PROBLEM TO BE SOLVED: To provide a steering control device for a vehicle capable of restraining responding delay of steering in releasing self-excited vibration restraining control to the minimum while effectively restraining self-excited vibration. SOLUTION: This steering control device for the veh...
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| creator | YASUNO YOSHIKI SAO MASAYUKI |
| description | PROBLEM TO BE SOLVED: To provide a steering control device for a vehicle capable of restraining responding delay of steering in releasing self-excited vibration restraining control to the minimum while effectively restraining self-excited vibration. SOLUTION: This steering control device for the vehicle is furnished with; a front wheel steering actuator 5 to vary a steering gear ratio which is a ratio of a steering angle of a steering wheel 10 against a steering angle of front wheels 11, 11; an electric current control part 42 to set a target front wheel steering angle in correspondence with a steering state of the steering wheel 10 and to PWM-control electric power to supply to the front wheel steering actuator 5 in accordance with the target front wheel steering angle and; a duty command value correcting means (actuator self-excited vibration determining part 43, duty command corrected value computing part 44, control change-over part 45) to maintain a duty command value constant when a deviation of the target front wheel steering angle and an actual steering angle is less than a prescribed value. COPYRIGHT: (C)2008,JPO&INPIT |
| format | Patent |
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SOLUTION: This steering control device for the vehicle is furnished with; a front wheel steering actuator 5 to vary a steering gear ratio which is a ratio of a steering angle of a steering wheel 10 against a steering angle of front wheels 11, 11; an electric current control part 42 to set a target front wheel steering angle in correspondence with a steering state of the steering wheel 10 and to PWM-control electric power to supply to the front wheel steering actuator 5 in accordance with the target front wheel steering angle and; a duty command value correcting means (actuator self-excited vibration determining part 43, duty command corrected value computing part 44, control change-over part 45) to maintain a duty command value constant when a deviation of the target front wheel steering angle and an actual steering angle is less than a prescribed value. 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SOLUTION: This steering control device for the vehicle is furnished with; a front wheel steering actuator 5 to vary a steering gear ratio which is a ratio of a steering angle of a steering wheel 10 against a steering angle of front wheels 11, 11; an electric current control part 42 to set a target front wheel steering angle in correspondence with a steering state of the steering wheel 10 and to PWM-control electric power to supply to the front wheel steering actuator 5 in accordance with the target front wheel steering angle and; a duty command value correcting means (actuator self-excited vibration determining part 43, duty command corrected value computing part 44, control change-over part 45) to maintain a duty command value constant when a deviation of the target front wheel steering angle and an actual steering angle is less than a prescribed value. 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SOLUTION: This steering control device for the vehicle is furnished with; a front wheel steering actuator 5 to vary a steering gear ratio which is a ratio of a steering angle of a steering wheel 10 against a steering angle of front wheels 11, 11; an electric current control part 42 to set a target front wheel steering angle in correspondence with a steering state of the steering wheel 10 and to PWM-control electric power to supply to the front wheel steering actuator 5 in accordance with the target front wheel steering angle and; a duty command value correcting means (actuator self-excited vibration determining part 43, duty command corrected value computing part 44, control change-over part 45) to maintain a duty command value constant when a deviation of the target front wheel steering angle and an actual steering angle is less than a prescribed value. COPYRIGHT: (C)2008,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING |
| title | STEERING CONTROL DEVICE FOR VEHICLE |
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