Vehicular control system for regenerative braking
First Claim
1. A method for controlling a vehicle having a regenerative braking unit, the method comprising:
- detecting a starting time of a fuel cell stack associated with a vehicle;
generating electrical energy during braking or deceleration of the vehicle via an electric drive motor mechanically coupled to at least one wheel of the vehicle;
determining a time window following the starting time;
routing the electrical energy to a resistive load associated with a heat exchanger thermally coupled to a fuel cell stack of the vehicle if the electrical energy is generated during the time window.
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Accused Products
Abstract
A system and method for controlling a vehicle for regenerative braking facilitates decreasing the warm-up time of the fuel cell stack from start-up to full electrical power generation capacity. A controller detects a starting time of a fuel cell stack associated with a vehicle. A drive motor generates electrical energy during braking or deceleration of the vehicle, where the drive motor is mechanically coupled to at least one wheel of the vehicle. A controller refers to or determines a time window following the starting time. The switching unit routes the electrical energy to a resistive load associated with a heat exchanger thermally coupled to a fuel cell stack of the vehicle if the electrical energy is generated during the time window.
50 Citations
22 Claims
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1. A method for controlling a vehicle having a regenerative braking unit, the method comprising:
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detecting a starting time of a fuel cell stack associated with a vehicle;
generating electrical energy during braking or deceleration of the vehicle via an electric drive motor mechanically coupled to at least one wheel of the vehicle;
determining a time window following the starting time;
routing the electrical energy to a resistive load associated with a heat exchanger thermally coupled to a fuel cell stack of the vehicle if the electrical energy is generated during the time window. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for controlling a vehicle having a regenerative braking unit, the method comprising:
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detecting a starting time of a fuel cell stack associated with a vehicle;
generating electrical energy during braking or deceleration of the vehicle;
determining a time window following the starting time;
routing the electrical energy to an energy storage device via a resistive load if the electrical energy is generated during the time window. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A system for controlling a vehicle having a regenerative braking unit, the system comprising:
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a heat exchanger for transferring thermal energy associated with a fuel cell stack of a vehicle;
a resistive load in thermal communication with at least one of the fuel cell stack and the heat exchanger;
a controller for detecting a starting time of a fuel cell stack associated with a vehicle and for determining a time window following the starting time;
a drive motor for generating electrical energy during braking or deceleration of the vehicle via an electric drive motor mechanically coupled to at least one wheel of the vehicle; and
a switching circuit for routing the electrical energy to the resistive load if the electrical energy is generated during the time window. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification