Control apparatus for a fuel cell vehicle
US6973393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Jan 20, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.