| 摘要 |
A method and system for controlling the switching in of ancillary equipment driven by an engine of a vehicle, the ancillary equipment being arranged to be driven by the engine until at least a minimum operating level relating to the status of the ancillary equipment is attained. The method includes the steps of: determining in which of three modes the vehicle is in, these modes being a first mode in which the engine is driving the vehicle, a second mode in which the vehicle is being braked and a third mode in which the vehicle is coasting; and in the first mode causing the ancillary equipment to be switched in only if the status of the ancillary equipment is below a predetermined minimum level; in the second mode causing the ancillary equipment to be switched in if the status of the ancillary equipment is below a predetermined maximum level; and in the third mode causing the ancillary equipment to be switched in only if the status of the ancillary equipment is below a predetermined intermediate level between the maximum level and the minimum level. |
