System and method for stability control
First Claim
1. A method for electronic stability control of a wheeled tactical 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 acceleration signal, a brake pedal signal, an active damping 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 tactical vehicle selected by a user via the mobility keypad;
receiving substantially in real time at a state estimator of a vehicle arbiter controller, the plurality of signals representing the current vehicle operating conditions;
receiving at the state estimator of the vehicle arbiter controller a signal associated with the mobility traction control system;
providing a brake-based stability control subsystem, a torque-based stability control subsystem, and a drivetrain-based stability control subsystem;
selecting one of the brake-based stability control subsystem, the torque-based stability control subsystem, and the drivetrain-based stability control subsystem as the dominant stability control system for the wheeled tactical vehicle based on three or more of the plurality of signals representing current vehicle operating conditions and the received signal associated with the mobility traction control system;
providing stability control for the wheeled tactical vehicle using the selected dominant stability control subsystem without using stability subsystems not selected as dominant, said providing stability control including providing active damping for the wheeled tactical vehicle; and
selecting subordinate subsystems based on the plurality of signals representing current vehicle operating conditions and providing stability control for the wheeled tactical vehicle based on the selected subordinate subsystems.
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Abstract
A system and method for stability control of a vehicle. The system and method can receive current vehicle operating data or signals as well as data or a signal from a traction control subsystem. Based on the received current vehicle operating data or signals data or a signal from a traction control subsystem, the system and method 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.
149 Citations
20 Claims
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1. A method for electronic stability control of a wheeled tactical 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 acceleration signal, a brake pedal signal, an active damping 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 tactical vehicle selected by a user via the mobility keypad; receiving substantially in real time at a state estimator of a vehicle arbiter controller, the plurality of signals representing the current vehicle operating conditions; receiving at the state estimator of the vehicle arbiter controller a signal associated with the mobility traction control system; providing a brake-based stability control subsystem, a torque-based stability control subsystem, and a drivetrain-based stability control subsystem; selecting one of the brake-based stability control subsystem, the torque-based stability control subsystem, and the drivetrain-based stability control subsystem as the dominant stability control system for the wheeled tactical vehicle based on three or more of the plurality of signals representing current vehicle operating conditions and the received signal associated with the mobility traction control system; providing stability control for the wheeled tactical vehicle using the selected dominant stability control subsystem without using stability subsystems not selected as dominant, said providing stability control including providing active damping for the wheeled tactical vehicle; and selecting subordinate subsystems based on the plurality of signals representing current vehicle operating conditions and providing stability control for the wheeled tactical vehicle based on the selected subordinate subsystems. - View Dependent Claims (2, 3, 4)
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5. A system for stability control of a tactical vehicle, the system comprising:
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first transmitting means for transmitting in real time a velocity signal of the tactical vehicle; second transmitting means for transmitting in real time a speed associated with traversing means of the tactical vehicle; third transmitting means for transmitting in real time a height signal associated with the tactical vehicle; fourth transmitting means for transmitting in real time a steering signal associated with the tactical vehicle; fifth transmitting means for transmitting in real time a throttle signal associated with the tactical vehicle; sixth transmitting means for transmitting in real time a roll/pitch/yaw signal associated with the tactical vehicle; seventh transmitting means for transmitting in real time a brake signal; eighth transmitting means for transmitting in real time at least one signal associated with a current driving condition of the tactical 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 tactical vehicle selected by a user; processing means for defining one of a brake-based stability control subsystem and a torque management-based stability control subsystem as the dominant stability control system of the tactical vehicle based on the signals from said first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth transmitting means; and controlling means for providing stability control of the tactical vehicle based on the defined dominant stability control system. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method for stability control of a vehicle comprising:
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receiving at an arbiter controller, data associated with current vehicle operating conditions; automatically choosing as the dominant stability control system for the vehicle from between a brake-based stability control subsystem and a torque management-based stability control subsystem based on said received data associated with current vehicle operating conditions; and providing stability control of the vehicle based on the automatically chosen dominant stability control system, automatically inhibiting control subsystems not chosen, wherein said receiving data associated with current vehicle operating conditions includes receiving data from three or more current vehicle operating conditions, wherein said automatically choosing is performed by a state estimator of the arbiter controller, and wherein said providing stability control includes an arbitration function. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification