Fuel cell vehicle having a plurality of selectable operating modes
First Claim
1. A fuel cell vehicle, comprising:
- a fuel cell system having a fuel cell stack for providing an electrical power Pstack and at least one auxiliary unit for operating the fuel cell stack with an electrical power consumption Paux;
an air-conditioning system for regulating a temperature of a vehicle interior space, the air-conditioning system including an electric auxiliary heater and an air-conditioning compressor with a collective electrical power demand PAC;
an electric motor for driving the fuel cell vehicle with a power demand PEM;
a plurality of sensors for detecting a temperature outside of the fuel cell vehicle, a first driver input, and a second driver input; and
a control unit that is configured to operate the fuel cell vehicle, based on the first driver input, in one of a plurality of operating modes, each operating mode of the plurality of operating modes provides a power consumption PAC of the air-conditioning system, an operating point of the fuel cell stack, and a transfer function for determining the power demand PEM from the second driver input;
wherein the control unit is configured to operate the fuel cell vehicle in a first operating mode that;
provides the air-conditioning system in a first manner based the temperature outside of the fuel cell vehicle;
provides the operating point of e fuel cell stack at or near a first efficient operating point; and
selects the transfer function for determining the power demand PEM such that the fuel cell stack provides a net power Pnet with a first delay based on the second driver input, the first delay being greater than a threshold delay.
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Accused Products
Abstract
The invention relates to a fuel cell vehicle (200), in which the driver has more influence on the consumption and the dynamic of the vehicle (200). This is achieved by the fuel cell vehicle (200) comprising at least one sensor for detecting a first driver input and a control unit (60). The control unit (60) is configured to operate the fuel cell vehicle (200) in one of a plurality of operating modes depending on the first driver input, wherein a power consumption PAC of the air-conditioning system (70), an operating range of the fuel cell stack (10), and a transfer function for determining the power demand PEM from the second driver input are varied depending on the selected operating mode. It is provided that the driver has at least five different operating modes available, which differ in particular with respect to the available driving dynamic, the fuel consumption, and the adjustable comfort.
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Citations
17 Claims
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1. A fuel cell vehicle, comprising:
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a fuel cell system having a fuel cell stack for providing an electrical power Pstack and at least one auxiliary unit for operating the fuel cell stack with an electrical power consumption Paux; an air-conditioning system for regulating a temperature of a vehicle interior space, the air-conditioning system including an electric auxiliary heater and an air-conditioning compressor with a collective electrical power demand PAC; an electric motor for driving the fuel cell vehicle with a power demand PEM; a plurality of sensors for detecting a temperature outside of the fuel cell vehicle, a first driver input, and a second driver input; and a control unit that is configured to operate the fuel cell vehicle, based on the first driver input, in one of a plurality of operating modes, each operating mode of the plurality of operating modes provides a power consumption PAC of the air-conditioning system, an operating point of the fuel cell stack, and a transfer function for determining the power demand PEM from the second driver input; wherein the control unit is configured to operate the fuel cell vehicle in a first operating mode that; provides the air-conditioning system in a first manner based the temperature outside of the fuel cell vehicle; provides the operating point of e fuel cell stack at or near a first efficient operating point; and selects the transfer function for determining the power demand PEM such that the fuel cell stack provides a net power Pnet with a first delay based on the second driver input, the first delay being greater than a threshold delay. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device, comprising:
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a fuel cell system having a fuel cell stack; an air-conditioning system; an electric motor; a first sensor that detects in operation a temperature; a second sensor that detects in operation a first driver input; a third sensor that detects in operation a second driver input; and a control unit coupled to the fuel cell system, the air-conditioning system, and the electric motor, the control unit selects one of a plurality of operating modes based on the first driver input and the second driver input, each operating mode provides a power consumption of the air-conditioning system, an operating point of the fuel cell stack, and a transfer function that determines a power demand in response to the second driver input; wherein the plurality of operating modes includes a first operating mode that; operates the air-conditioning system in a first manner based on the temperature; provides the operating point of the fuel cell stack is at or near a first efficient operating point, and determines the transfer function to provide the fuel cell stack a net power with a first delay in response to the second driver input, the first delay being greater than a threshold delay. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification