A Method for Controlling Activation of a Power Source of a Hybrid Electrical Vehicle.

摘要

The hybrid vehicle comprises a braking system; a primary power source 16 such as an IC engine and fuel cell; a secondary power source 18 such as a battery and capacitor; and an electric motor 20 such as a starter/alternator. The motor is connected to both power sources and a transmission unit 26 which are adapted to drive at least one wheel 14. The method comprises steps of determining a vehicle speed and an operating state of the braking system preferably via sensors 42 and 40 respectively; and activating the primary power source based on determined speed and braking state.