Electric vehicle thermal management system with series and parallel structure
AssigneeThunder Power New Energy Vehicle Development Company Limited
InventorMing-Chieh Cheng
Life of this patent
Estimating the term…
Abstract
Electric vehicle thermal management systems and electric vehicles using the thermal management system, are disclosed. A passenger cabin is heated by the heat dissipated from a battery and/or a motor. A cooling circuit in the management system fluidly connects the battery, the motor and a first radiator in series. The first radiator provides a heat source to the passenger cabin by means of the heat dissipated from the battery and/or the electric motor. Under certain conditions, the electric motor is selectively separated from the cooling circuit, so that when the passenger cabin needs to be heated, the thermal management system can provide heat to the passenger cabin without affecting the heat dissipation of the battery.
Claims20
An electric vehicle thermal management system for heating a passenger cabin of an electric vehicle by means of heat absorbed from at least a battery and an electric motor of the electric vehicle, comprising:
- a battery temperature sensor configured to detect a battery temperature of the battery;
- a first radiator configured to dissipate heat to a cabin of the electrical vehicle;
- and
- a controller operatively connected to the battery temperature sensor, and configured to:
- receive an heat instruction from a user of the vehicle indicating heat is needed in the cabin of the electrical vehicle;
- and
- selectively connect at least one of the battery and electric motor to the first radiator such that:
- when the heat instruction is not received, none of the battery and motor is connected to the first radiator, and
- when the heat instruction is received and battery sensor detects the battery temperature is not above a threshold temperature for the battery, the battery and the electric motor are both connected to the first radiator.
An method for controlling electric vehicle thermal management system for heating a passenger cabin of an electric vehicle by means of heat absorbed from at least a battery and an electric motor of the electric vehicle, the vehicle comprising a battery temperature sensor configured to detect a battery temperature of the battery, a first radiator configured to dissipate heat to a cabin of the electrical vehicle, and a controller operatively connected to the battery temperature sensor, wherein the method is implemented by the controller and comprises:
- receiving an heat instruction from a user of the vehicle indicating heat is needed in the cabin of the electrical vehicle;
- and
- selectively connecting at least one of the battery and electric motor to the first radiator such that:
- when the heat instruction is not received, none of the battery and motor is connected to the first radiator, and
- when the heat instruction is received and battery sensor detects the battery temperature is not above a threshold temperature for the battery, the battery and the electric motor are both connected to the first radiator.
Dependencies are inferred from the claim text.