Operating device for a cruise control system in a vehicle with regenerative braking capability
First Claim
1. A method for using a cruise control system on an electric vehicle having regenerative braking to control the speed of the vehicle as it travels downhill, said method comprising:
- determining that braking is being applied to the vehicle;
determining that the cruise control system has been activated while the braking is being applied to the vehicle; and
using braking from a vehicle propulsion system to prevent the vehicle speed from increasing or decreasing while the cruise control system is activated.
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Accused Products
Abstract
A method for controlling the speed of a vehicle having a regenerative or active braking capacity when the vehicle is traveling downhill using a cruise control system on the vehicle. When brake pedal is applied and the cruise control is set, the vehicle is put into a controlled braking mode. The cruise control system controls are then used inversely to the normal operation where decreases in vehicle speed are provided by applying motoring torque. For the inversed cruise control, increasing the vehicle speed is prohibited by applying more regenerative braking torque.
24 Citations
19 Claims
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1. A method for using a cruise control system on an electric vehicle having regenerative braking to control the speed of the vehicle as it travels downhill, said method comprising:
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determining that braking is being applied to the vehicle; determining that the cruise control system has been activated while the braking is being applied to the vehicle; and using braking from a vehicle propulsion system to prevent the vehicle speed from increasing or decreasing while the cruise control system is activated. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for using a cruise control system on an electric vehicle having a regenerative braking to control the speed of the vehicle as it travels downhill, said method comprising:
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determining that the cruise control system has been activated while braking is being applied as the vehicle is traveling downhill to put the vehicle in a braking cruise control model; applying braking torque from a propulsion system as the speed of the vehicle increases as it travels downhill in the braking mode so as to maintain the speed of the vehicle substantially constant; removing braking torque from the propulsion system as the speed of the vehicle decreases as the vehicle travels downhill in the braking mode so as to maintain the speed of the vehicle substantially constant; and determining that the cruise control system has been deactivated by applying throttle to the vehicle and resuming controlling the speed of the vehicle by propulsion system braking if a resume button of the cruise control system has been pressed after the throttle has been applied. - View Dependent Claims (9, 10, 11, 12)
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13. A system for using a cruise control on an electric vehicle having regenerative braking to control the speed of the vehicle as it travels downhill, said system comprising:
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means for determining that braking is being applied to the vehicle; means for determining that the cruise control has been activated while the braking is being applied to the vehicle; and means for using braking from a vehicle propulsion system to prevent the vehicle speed from increasing or decreasing while the cruise control is activated. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification