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US 10,518,775 B1Granted
Regenerative braking of vehicle with primary and secondary drive axles
AssigneeFord Global Technologies, LLC
InventorsJose Velazquez Alcantar, Corwin Stout, Rajit Johri, Joseph Jay Torres
Life of this patent
Estimating the term…
Abstract
A vehicle includes primary and secondary axles including primary and secondary electric machines, respectively. A vehicle controller is programmed to, responsive to a braking torque request, command regenerative torques, that are a proportion of the braking torque request, to the electric machines such that the proportion commanded to the secondary electric machine decreases responsive to lateral acceleration of the vehicle increasing.
Claims19
A vehicle comprising:
- primary and secondary axles including primary and secondary electric machines, respectively;
- and
- a controller programmed to, responsive to a braking torque request, command regenerative torques, that are a proportion of the braking torque request, to the electric machines such that the proportion commanded to the secondary electric machine decreases responsive to lateral acceleration of the vehicle increasing.
A vehicle comprising:
- primary and secondary drive axles;
- and
- a controller programmed to, responsive to a braking torque request, (i) command a regenerative torque to the secondary axle that is derived from the braking torque request, a base-split modifier, and an efficiency modifier, wherein the base-split modifier is based on vehicle speed and longitudinal acceleration of the vehicle, and (ii) command a regenerative torque to the primary axle that is derived from the braking torque and the regenerative torque to the secondary electric axle.
A vehicle comprising:
- primary and secondary axles including primary and secondary electric machines, respectively;
- and
- a controller programmed to, responsive to a braking torque request, command regenerative torques, that are a proportion of the braking torque request, to the electric machines such that the proportion commanded to the secondary electric machine decreases responsive to longitudinal acceleration of the vehicle increasing.
Dependencies are inferred from the claim text.