Control system, system and method for an electric vehicle
AssigneeJaguar Land Rover Limited
InventorsOliver Stocks, Benjamin Stegmann, Nilabza Dutta, Francesco Garbo
Life of this patent
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Abstract
Aspects of the present invention relate to a control system (100) comprising one or more controllers (105), the control system comprising input means (130) to receive a temperature signal (135) indicative of a temperature of a transmission (160) associated with a traction electric machine (150) of a vehicle, output means (140) to output a control signal (145) for causing a fluidic communication of thermal energy from a heat source to a transmission heat exchanger (190) for heating the transmission, and processing means (110) arranged to control the output means to output the control signal in dependence on the temperature signal.
Claims18
A control system comprising one or more controllers, the control system comprising:
- an input arranged to receive a temperature signal indicative of a temperature of a transmission associated with a traction electric machine of a vehicle, the input means arranged to receive a journey signal indicative of a journey of the vehicle commencing;
- an output arranged to operably output a control signal for causing a fluidic communication of thermal energy from a first fluid in thermal communication with a heat source to a second fluid in thermal communication with a transmission heat exchanger for heating the transmission, the first fluid and the second fluid being different fluids and exchanging thermal energy in the transmission heat exchanger;
- and
- an electronic processing device arranged to control the output to output the control signal in dependence on the temperature signal and in dependence on the journey signal to cause heating of the transmission prior to the journey of the vehicle commencing.
A system for an electric vehicle, comprising:
- a fluid communication system for fluidicly communicating thermal energy from a first fluid in thermal communication with a heat source to a second fluid in thermal communication with a transmission heat exchanger for heating a transmission associated with a traction inverter and traction electric machine of the vehicle, the first fluid and the second fluid being different fluids;
- temperature sensing device arranged for outputting a temperature signal indicative of a temperature of at least a portion of the transmission;
- and
- a control system comprising an input arranged to receive the temperature signal and a journey signal indicative of a journey of the vehicle commencing, an output arranged to operably output a control signal for causing circulation of the first fluid in the fluid communication system to conduct a thermal heat exchange with the second fluid in the transmission heat exchanger, wherein the control system is arranged to output the control signal in dependence on the temperature signal and in dependence on the journey signal.
A method, comprising:
- determining a temperature of a transmission associated with a traction electric machine of a vehicle;
- and
- causing fluidic communication of thermal energy from a first fluid in thermal communication with a heat source to a second fluid in thermal communication with a transmission heat exchanger for heating the transmission in dependence on the temperature of the transmission,
- wherein the first fluid and the second fluid are different fluids.
Dependencies are inferred from the claim text.