A LAND VEHICLE DRIVEN BY AN ELECTRIC OR HYDRAULIC MOTOR

摘要

With reference to the accompanying figure, the present invention provides a land vehicle (10) comprising: an electric or hydraulic motor (15-18) for driving at least one driven wheel; a battery (19) supplying electrical power or a source of hydraulic power; an electronic controller (26) which controls operation of the electric or hydraulic motor; and a driver operated throttle control (40). The electronic controller (26) receives a plurality of input signals including an input signal indicative of operation of the driver operated throttle control (40) and implements a plurality of different operating regimes corresponding to a plurality of different simulated gear ratios. The controller (26) selects an operating regime based on the plurality of input signals received thereby. The controller (26) can operate the electric motor (15 -18) as a generator or the hydraulic motor as a pump to implement regenerative braking of the vehicle. Each operating regime has a level of regenerative braking unique thereto. Additionally or alternatively, a short term energy store (34) is provided separate from the source of fluid pressure or the battery (19) and the controller (26) on sensing that a change from one simulated gear ratio to a lower simulated gear ratio is accompanied by a throttle control position which indicates that vehicle acceleration is required increases torque and/or power output of the electric or hydraulic motor (15- 18) by releasing energy from the short term energy store (34).