Claims
- 1. A vehicle comprising an electric drive unit, a fuel cell operatively connected with the drive unit and provided with a feed line in which a compressor is operatively arranged to be driven via an electric motor for compressing oxidant mass flow, the drive unit and the electric motor being operatively configured to be supplied with electrical energy from the fuel cell, a starter motor operatively connected to drive the compressor, and a starter battery configured to supply voltage to the starter motor.
- 2. A method for starting a vehicle comprising an electric drive unit, a fuel cell operatively connected with the drive unit and provided with a feed line in which a compressor is operatively arranged to be driven via an electric motor for compressing oxidant mass flow, the drive unit and the electric motor being operatively configured to be supplied with electrical energy from the fuel cell, a starter motor operatively connected to drive the compressor, and a starter battery configured to supply voltage to the starter motor comprising the steps of
- (a) initiating a safety interrogation is started after the start of the method,
- (b) after successful termination of the safety interrogation, starting the fuel cell with the starter 15 motor; and
- (c) only after the fuel cell has reached a predetermined no-load power activating the electric motor, deactivating the starter motor and releasing the drive unit.
- 3. The method according to claim 2, wherein the safety interrogation step is initiated by opening a vehicle door.
- 4. The method according to claim 2, wherein the safety interrogation step is interrupted until gas sensors arranged in the vehicle have reached a predetermined operating temperature, and the safety interrogation step is terminated as soon as the gas sensors deliver regular signals.
- 5. The method according to claim 2, wherein step (c) further includes switching on a cooling water pump of the fuel cell.
- 6. The method according to claim 2, wherein, at the beginning of the start of the method, a valve in a fuel supply line to the fuel cell is opened, and a vehicle driver is subsequently instructed by activation of a warning lamp to-purge an exhaust line of the fuel cell.
- 7. The method according to claim 2, wherein after acknowledgement of a warnings signal by a vehicle driver, a purge valve operatively associated with an exhaust line of the fuel cell is opened for a prescribed time period.
Priority Claims (1)
Number |
Date |
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Kind |
43 22 767.8 |
Jul 1993 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 08/272,197, filed Jul. 8, 1994, now abandoned.
US Referenced Citations (12)
Foreign Referenced Citations (6)
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Country |
2846673 |
May 1979 |
DEX |
63-241876 |
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JPX |
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JPX |
4-242075 |
Aug 1992 |
JPX |
4-342961 |
Nov 1992 |
JPX |
WO 9119328 |
Dec 1991 |
WOX |
Non-Patent Literature Citations (2)
Entry |
The GM High-Performance Induction Motor Drive System, Paul D. Agarwal IEEE Transactions on Power Apparatus and Systems, vol. PAS-88, No. 2, Feb. 1969, pp. 86-93. |
Automobiltechnische Zeitschrift, Heinz G. Plust, ATZ, 69 Jahrgang, Nr. 6, Jun. 1967, pp. 175-183. |
Continuations (1)
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Number |
Date |
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Parent |
272197 |
Jul 1994 |
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