METHODS FOR STEERING SYSTEM IMPEDANCE CONTROL
First Claim
1. A method for controlling a vehicle, the method comprising:
- providing a vehicle steering system, the vehicle steering system comprising a moveable steering column assembly and a moveable steering wheel assembly, a first actuator coupled to the moveable steering column assembly and a second actuator coupled to the moveable steering wheel assembly, the first and second actuators configured to move vehicle steering system from a first position to a second position;
providing a sensor connected to the vehicle steering system, the sensor configured to measure a steering system force characteristic;
providing a controller electronically connected to the sensor and the vehicle steering system;
monitoring, by the controller, sensor data received from the sensor;
generating, by the controller, a reference model based on a desired output displacement and the sensor data;
calculating, by the controller, a revised output displacement based on the reference model; and
automatically generating, by the controller, a first control signal to control the first actuator and a second control signal to control the second actuator.
1 Assignment
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Accused Products
Abstract
An exemplary method for controlling a vehicle includes providing a vehicle steering system including a moveable steering column assembly and a moveable steering wheel assembly, a first actuator and a second actuator, the first and second actuators configured to move vehicle steering system from a first position to a second position, providing a plurality of sensors, the sensors configured to measure a force characteristic, providing a controller electronically connected to the sensors and the vehicle steering system, monitoring first sensor data received from the first sensor and second sensor data received from the second sensor, generating a reference model based on a desired output displacement and the first and second sensor data, calculating, a revised output displacement based on the reference model, and automatically generating a first control signal to control the first actuator and a second control signal to control the second actuator.
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Citations
19 Claims
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1. A method for controlling a vehicle, the method comprising:
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providing a vehicle steering system, the vehicle steering system comprising a moveable steering column assembly and a moveable steering wheel assembly, a first actuator coupled to the moveable steering column assembly and a second actuator coupled to the moveable steering wheel assembly, the first and second actuators configured to move vehicle steering system from a first position to a second position; providing a sensor connected to the vehicle steering system, the sensor configured to measure a steering system force characteristic; providing a controller electronically connected to the sensor and the vehicle steering system; monitoring, by the controller, sensor data received from the sensor; generating, by the controller, a reference model based on a desired output displacement and the sensor data; calculating, by the controller, a revised output displacement based on the reference model; and automatically generating, by the controller, a first control signal to control the first actuator and a second control signal to control the second actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for controlling a vehicle, the method comprising:
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providing a vehicle steering system, the vehicle steering system comprising a moveable steering column assembly and a moveable steering wheel assembly, the moveable steering column assembly comprising a first actuator coupled to the moveable steering column assembly and configured to translate the moveable steering column assembly between a first steering column position and a second steering column position, the moveable steering wheel assembly comprising a first steering wheel member and a second steering wheel member coupled to a shroud assembly, a contact material positioned between the first and second steering wheel members and the shroud assembly, and a second actuator coupled to the moveable steering wheel assembly, the second actuator configured to pivot moveable steering wheel assembly between a first steering wheel position and a second steering wheel position; providing a first sensor connected to the steering column assembly and a second sensor connected to the steering wheel assembly, the first sensor configured to measure a first force characteristic and the second sensor configured to measure a second force characteristic; providing a controller electronically connected to the first and second sensors and the vehicle steering system; monitoring, by the controller, first sensor data received from the first sensor and second sensor data received from the second sensor; generating, by the controller, a reference model based on a desired output displacement and the first and second sensor data; calculating, by the controller, a revised output displacement based on the reference model; and automatically generating, by the controller, a first control signal to control the first actuator and a second control signal to control the second actuator. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A vehicle steering system, comprising:
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a moveable steering column assembly, the moveable steering column assembly comprising a first actuator coupled to the moveable steering column assembly and configured to translate the moveable steering column assembly between a first position and a second position; a moveable steering wheel assembly, the moveable steering wheel assembly comprising a first steering wheel member and a second steering wheel member coupled to a shroud assembly, a contact material positioned between the first and second steering wheel members and the shroud assembly, and a second actuator coupled to the moveable steering wheel assembly, the second actuator configured to pivot moveable steering wheel assembly between a first steering wheel position and a second steering wheel position; a first sensor connected to the steering column assembly, the first sensor configured to measure a first force characteristic; a second sensor connected to the steering wheel assembly, the second sensor configured to measure a second force characteristic; a controller electronically connected to the first and second sensors and the first and second actuators, the controller configured to monitor first sensor data received from the first sensor and second sensor data received from the second sensor; generate a reference model based on a desired output displacement and the first and second sensor data; calculate a revised output displacement based on the reference model using impedance control; and automatically generate a first control signal to control the first actuator and a second control signal to control the second actuator. - View Dependent Claims (19)
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Specification