Control apparatus for a fuel cell vehicle

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system

Reexamination Certificate

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C429S010000

Reexamination Certificate

active

06973393

ABSTRACT:
A control apparatus calculates the capacitor maximum power (PCAPU) that can be supplied to a capacitor depending on the detected value of the temperature of the capacitor, and calculates the output power (PFC) of the fuel cell, the real power of the motor (PMOT) that actually powers the drive motor, and the load power (PAC) that actually powers an electrical load, excluding the drive motor. The control apparatus calculates the motor power limiting value (PMOTU), which is the motor power that corresponds to the capacitor maximum power (PCAPU), based on the output power (PFC) of the fuel cell, the load power (PAC) that powers the electrical load, excluding the drive motor, and the capacitor maximum power (PCAPU). The control apparatus output to the output controller a control command that directs the real power of the motor (PMOT) to take the value of the motor power limiting value (PMOTU) in the case that the real power of the motor (PMOT) is larger than the motor power limiting value (PMOTU). The drivability of a fuel cell vehicle is improved while protecting the capacitor.

REFERENCES:
patent: 6321145 (2001-11-01), Rajashekara
patent: 6458478 (2002-10-01), Wang et al.
patent: 6744237 (2004-06-01), Kopf et al.
patent: 2003/0139859 (2003-07-01), Hanada et al.
patent: 2004/0015255 (2004-01-01), Davis
patent: 2001-357865 (2001-12-01), None
Gao et al., Systematic Design of Fuel Cell Powered Hybrid Vehicle Drive Train, 2001 IEEE, pp. 604-611.
Francesco et al., Start-Up Analysis for Automotive PEM Fuel Cell Systems, Jun. 1 2002, Journal of Power Sources, vol. 108, Issue 1-2, pp. 41-52.
YuWen et al., Performance Optimization Control of the Fuel Cells Electric Vehicle Driving System, 2002 IEEE, pp. 149-152.
Kumar et al., Fuel Cell for Vehicle Propulsion Applications: A Thermodynamic Systems Analysis, 1989 IEEE, pp. 1601-1606.

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