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US 12,766,909 B2Granted
Vehicle temperature control assembly and system
AssigneeJaguar Land Rover Limited
InventorsChris Roberts, Marc Llusa Juny, Chris Chatham
Life of this patent
Estimating the term…
Abstract
The disclosure relates to a vehicle temperature control assembly having a heat exchanger; a battery temperature control circuit; and a vehicle air conditioning circuit having an engine driven compressor, wherein the heat exchanger is configured to transfer heat between the battery temperature control circuit and the vehicle air conditioning circuit. The disclosure also relates to a vehicle temperature control system, a vehicle subassembly and to a vehicle.
Claims20
A vehicle temperature control assembly, comprising:
- a heat exchanger;
- a processor;
- a battery temperature control circuit;
- and
- a vehicle air conditioning circuit having an engine driven compressor;
- wherein the heat exchanger comprises a first fluid channel in fluid communication with the battery temperature control circuit for receiving coolant therefrom and a second fluid channel in fluid communication with the vehicle air conditioning circuit for receiving refrigerant therefrom so as to transfer heat therebetween, wherein fluid communication between the vehicle air conditioning circuit and the heat exchanger is controllable via a valve, wherein upon receipt of a cooling request signal from the processor, the vehicle air conditioning circuit is configured to determine the operational state of the engine driven compressor and the ambient temperature;
- and further wherein
- if it is determined that the engine driven compressor is in an active state, and the ambient temperature is greater than a predetermined ambient temperature threshold, the vehicle air conditioning circuit is configured to reject the cooling request by:
- if the valve is in an open state, closing the valve in order to stop refrigerant from flowing through the heat exchanger;
- or
- if the valve is in a closed state, maintaining the valve in the closed state.
8 more elements
A vehicle temperature control system, comprising:
- a heat exchanger;
- a battery temperature control circuit in fluid communication with the heat exchanger and configured to convey a coolant therethrough;
- a battery temperature sensor configured to determine the temperature of a battery, in use;
- a vehicle air conditioning circuit in fluid communication with the heat exchanger and configured to convey a refrigerant therethrough,
- wherein the vehicle air conditioning circuit comprises:
- an engine driven compressor;
- a valve configured to control the fluid communication between the vehicle air conditioning circuit and the heat exchanger;
- and
- an air conditioning circuit controller configured to control an operational state of the valve;
- wherein the vehicle temperature control system is configured to control transfer of heat between the coolant and the refrigerant via the heat exchanger;
- and
- a processor operatively connected to the battery temperature sensor and the air conditioning circuit controller, wherein upon receipt of a cooling request signal from the processor, the air conditioning circuit controller is configured to determine the operational state of the engine driven compressor and the ambient temperature;
- and further wherein
- if it is determined that the engine driven compressor is in an active state, and the ambient temperature is greater than a predetermined ambient temperature threshold, the air conditioning circuit controller is configured to reject the cooling request by:
- if the valve is in an open state, closing the valve in order to stop refrigerant from flowing through the heat exchanger;
- or
- if the valve is in a closed state, maintaining the valve in the closed state.
14 more elements
A vehicle temperature control assembly comprising:
- a power electronics module comprising a battery and a DC-DC converter;
- a battery temperature control circuit comprising a conduit configured to convey a coolant;
- a heat exchanger;
- a vehicle air conditioning circuit having an engine driven compressor;
- and
- a valve configured to control the fluid communication between the vehicle air conditioning circuit and the heat exchanger;
- and
- wherein the conduit is configured for fluid connection with the heat exchanger;
- and
- wherein at least a portion of the conduit extends around and/or through a housing of the battery and/or around and/or through a housing of the DC-DC converter, wherein upon receipt of a cooling request signal, the vehicle air conditioning circuit is configured to determine the operational state of the engine driven compressor and the ambient temperature;
- and further wherein
- if it is determined that the engine driven compressor is in an active state, and the ambient temperature is greater than a predetermined ambient temperature threshold, the air conditioning circuit controller is configured to reject the cooling request by:
- if the valve is in an open state, closing the valve in order to stop refrigerant from flowing through the heat exchanger;
- or
- if the valve is in a closed state, maintaining the valve in the closed state.
12 more elements
Dependencies are inferred from the claim text.