System and method for stability control using GPS data
First Claim
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1. A method for electronic stability control of a wheeled vehicle, the electronic stability control method comprising:
- transmitting a plurality of signals representing current vehicle operating conditions, the current vehicle operating conditions signals including three or more of a velocity signal, a wheel speed signal, a height signal, a steering signal, a throttle signal, a roll/pitch/yaw signal, an active damping signal, a brake pedal signal, and one or more current driving conditions signals;
transmitting a signal from a mobility traction control system including a mobility keypad, the signal from the mobility traction control system being indicative of a traction mode of the wheeled vehicle selected by a user via the mobility keypad;
transmitting a signal from a GPS system of the wheeled vehicle;
transmitting a weather signal associated with the wheeled vehicle;
receiving substantially in real time at a state estimator of a vehicle arbiter controller, three or more signals associated with the current vehicle operating conditions;
receiving at the state estimator of the vehicle arbiter controller a signal associated with the mobility traction control system;
receiving at the state estimator of the vehicle arbiter controller a signal associated with the GPS system and a signal associated with the weather signal;
defining one of a brake-based stability control subsystem, a torque-based stability control subsystem, and a drivetrain-based stability control subsystem as the dominant stability control system based on the three or more signals associated with current vehicle operating conditions, based on the signal associated with the mobility traction control system, based on the signal associated with the GPS system, and based on the signal associated with the weather signal; and
providing stability control of the wheeled vehicle based on the dominant stability control system, said providing stability control including providing active damping for the wheeled vehicle.
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Abstract
A system and method for stability control of a vehicle using GPS data. The system and method can receive GPS data and optionally vehicle operating data or signals and define one of a brake-based stability control subsystem and a torque management-based stability control subsystem as the dominant stability control system. Based on the stability control subsystem defined as the dominant stability control system, the system and method provide stability control for the vehicle. The system and method also defines the dominant stability control system based on weather data.
162 Citations
21 Claims
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1. A method for electronic stability control of a wheeled vehicle, the electronic stability control method comprising:
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transmitting a plurality of signals representing current vehicle operating conditions, the current vehicle operating conditions signals including three or more of a velocity signal, a wheel speed signal, a height signal, a steering signal, a throttle signal, a roll/pitch/yaw signal, an active damping signal, a brake pedal signal, and one or more current driving conditions signals; transmitting a signal from a mobility traction control system including a mobility keypad, the signal from the mobility traction control system being indicative of a traction mode of the wheeled vehicle selected by a user via the mobility keypad; transmitting a signal from a GPS system of the wheeled vehicle; transmitting a weather signal associated with the wheeled vehicle; receiving substantially in real time at a state estimator of a vehicle arbiter controller, three or more signals associated with the current vehicle operating conditions; receiving at the state estimator of the vehicle arbiter controller a signal associated with the mobility traction control system; receiving at the state estimator of the vehicle arbiter controller a signal associated with the GPS system and a signal associated with the weather signal; defining one of a brake-based stability control subsystem, a torque-based stability control subsystem, and a drivetrain-based stability control subsystem as the dominant stability control system based on the three or more signals associated with current vehicle operating conditions, based on the signal associated with the mobility traction control system, based on the signal associated with the GPS system, and based on the signal associated with the weather signal; and providing stability control of the wheeled vehicle based on the dominant stability control system, said providing stability control including providing active damping for the wheeled vehicle. - View Dependent Claims (2, 3, 4, 5)
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6. A system for stability control of a vehicle, the system comprising:
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first transmitting means for transmitting in real time a velocity signal of the vehicle; second transmitting means for transmitting in real time a wheel speed signal; third transmitting means for transmitting in real time a height signal associated with the vehicle; fourth transmitting means for transmitting in real time a steering signal associated with the vehicle; fifth transmitting means for transmitting in real time a throttle signal associated with the vehicle; sixth transmitting means for transmitting in real time a roll/pitch/yaw signal associated with the vehicle; seventh transmitting means for transmitting in real time a brake pedal signal associated with the vehicle; eighth transmitting means for transmitting in real time at least one signal associated with a current driving condition of the vehicle; ninth transmitting means for transmitting a signal from a traction control system, the signal from the traction control system being indicative of a traction mode of the vehicle selected by a user; tenth transmitting means for transmitting a signal from a GPS system of the vehicle; processing means for defining one of a brake-based stability control subsystem, a torque management-based stability control subsystem and a drivetrain-based stability control subsystem as the dominant stability control system based on the signals from said first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth transmitting means; and controlling means for providing stability control of the vehicle based on the dominant stability control system. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method for stability control of a wheeled vehicle comprising:
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receiving at an arbiter controller GPS data; automatically choosing as a dominant stability control system for the wheeled vehicle from between a brake-based stability control subsystem, a torque management-based stability control subsystem and a drivetrain-based stability control subsystem based on said GPS data; and providing stability control of the wheeled vehicle based on the dominant stability control system. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification