Control of independent steering actuators to improve vehicle stability and stopping
First Claim
1. A steer-by-wire system for a motor vehicle, comprising:
- a steering input system;
a controller in electronic communication with said steering input system; and
a plurality of roadwheel systems, each being in electronic communication with said controller, and each of said roadwheel systems comprising, a steering actuator, and a steerable wheel rotatably and operably connected to said steering actuator, said steerable wheel being configured to be angled relative to a direction of travel of said motor vehicle.
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Accused Products
Abstract
An independent steering and/or braking control to improve motor vehicle stability and stopping utilizes a steer-by-wire system that includes a steering input system, a controller in electronic communication with the steering input system, and a plurality of roadwheel systems. Each of the roadwheel systems is in electronic communication with the controller, and each roadwheel system includes a steering actuator and a steerable wheel rotatably and operably connected to the steering actuator. The steerable wheel is configured to be angled independent of other steerable wheels and relative to a direction of travel of the motor vehicle. A method of stopping the motor vehicle as it travels includes angling a pair of the steerable wheels thereof in opposing directions. The direction of the motor vehicle can also be controlled by angling the pair of steerable wheels in opposing directions and adjusting the angle of the pair of steerable wheels If the motor vehicle is articulating a turn, its direction of travel can also be controlled by angling one of the steerable wheels and steering with the other of the steerable wheels. In addition, the angle of the steerable wheels can be adjusted to compensate for lateral disturbance without driver involvement.
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Citations
16 Claims
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1. A steer-by-wire system for a motor vehicle, comprising:
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a steering input system;
a controller in electronic communication with said steering input system; and
a plurality of roadwheel systems, each being in electronic communication with said controller, and each of said roadwheel systems comprising, a steering actuator, and a steerable wheel rotatably and operably connected to said steering actuator, said steerable wheel being configured to be angled relative to a direction of travel of said motor vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of decelerating a moving motor vehicle, comprising:
angling a pair of steerable wheels in opposing directions. - View Dependent Claims (12)
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13. A method of directional control of a moving motor vehicle, comprising:
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angling a pair of steerable wheels in opposing directions to brake said motor vehicle; and
adjusting an angle of said pair of said steerable wheels to control a direction of said motor vehicle.
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14. A method of directional control of a motor vehicle moving through a turn, comprising:
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angling a first steerable wheel; and
steering said motor vehicle with a second steerable wheel. - View Dependent Claims (15, 16)
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Specification