DYNAMIC ROAD GRADIENT ESTIMATION
First Claim
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1. A vehicle comprising:
- a controller configured to generate output indicative of a vehicle mass estimation based on a longitudinal acceleration and a wheel torque when at least one of the longitudinal acceleration, a vehicle speed and a yaw rate indicate an occurrence of a qualified event;
wherein the vehicle mass estimation is independent of a road gradient estimation.
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Abstract
A vehicle and vehicle system are provided with a controller that is configured to generate output indicative of a vehicle mass estimation. The vehicle mass estimation is based on a longitudinal acceleration and a wheel torque when at least one of the longitudinal acceleration, a vehicle speed and a yaw rate indicate an occurrence of a qualified event. The controller is further configured to generate output indicative of a dynamic road gradient estimation based on the vehicle speed, the wheel torque and the vehicle mass estimation.
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20 Claims
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1. A vehicle comprising:
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a controller configured to generate output indicative of a vehicle mass estimation based on a longitudinal acceleration and a wheel torque when at least one of the longitudinal acceleration, a vehicle speed and a yaw rate indicate an occurrence of a qualified event; wherein the vehicle mass estimation is independent of a road gradient estimation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle system comprising:
a controller configured to; generate output indicative of a vehicle mass estimation based on a longitudinal acceleration and a wheel torque in response to a qualified event, and generate output indicative of a dynamic road gradient estimation based on a vehicle speed, a wheel torque and the vehicle mass estimation. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for estimating a dynamic road gradient comprising:
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generating output indicative of a vehicle mass estimation based on a longitudinal acceleration and a wheel torque in response to a qualified event; and generating output indicative of a dynamic road gradient estimation based on a vehicle speed, a wheel torque and the vehicle mass estimation. - View Dependent Claims (20)
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Specification