Vehicle thermal management system and control method thereof, vehicle
A thermal management system and vehicle technology, applied in the field of vehicles, vehicle thermal management systems and control methods thereof, can solve the problems of increasing the energy consumption burden of the whole vehicle, heat waste, slow cooling efficiency and the like
Active Publication Date: 2022-05-13
BYD CO LTD
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Problems solved by technology
The existing engine thermal management circuit and the battery system circuit are relatively independent, and the intercommunication between the circuits cannot be realized, so the heating of the battery by the engine cannot be realized
In addition, the existing electric drive thermal management system is independent of the air conditioner thermal management system and the battery thermal management system. The heating of the battery mainly depends on the battery heater for heating. Radiator for heat dissipation, resulting in waste of heat
When the cooling demand of the motor or electronic control is high, the cooling efficiency is slow and the effect is poor if only the radiator is used to cool down
In addition, the cooling of the battery mainly depends on the thermal management system of the air conditioner. Even when the cooling demand of the battery is low and the passenger compartment has no cooling demand, the thermal management system of the air conditioner needs to be activated, which also increases the energy consumption burden of the vehicle.
Method used
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[0029] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0030] In this disclosure, unless stated to the contrary, the use of orientation words such as "refrigerant inlet, cooling liquid inlet, refrigerant outlet and cooling liquid outlet" are generally relative to the flow direction of a fluid such as refrigerant or cooling liquid. Specifically, the openings through which fluid flows into components in the thermal management system of vehicles such as condensers, batteries, and evaporators are "refrigerant inlets and coolant inlets". The outflow openings of components in the thermal management system are "refrigerant outlets and coolant outlets".
[0031] like Figure 1 to Figure 3As shown, the present disclosur...
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The present disclosure relates to a vehicle thermal management system and its control method, and a vehicle. The vehicle thermal management system includes a battery and an electric drive thermal management The heat exchanger and the second heat exchanger exchange heat with the air conditioning system, the engine and the heat management system of the heater core, and the heat management system of the engine and the heater core includes the engine, the second heat exchanger, the first radiator and the The heater core for heating the passenger compartment has a first communication mode, a second communication mode, a third communication mode and a fourth communication mode. In the first communication mode, the engine, the second heat exchanger, the heater core and The first radiator is connected in series to form a circuit; in the second connection mode, the engine, the second heat exchanger and the first radiator are connected in series to form a circuit; in the third connection mode, the engine, the heater core and the first radiator are connected in series to form a circuit ; In the fourth connection mode, the engine and the first radiator are connected in series to form a circuit.
Description
technical field [0001] The present disclosure relates to the field of vehicle thermal management systems, in particular, to a vehicle thermal management system, a control method thereof, and a vehicle. Background technique [0002] In the vehicle thermal management system of hybrid electric vehicles, it includes air-conditioning thermal management system, battery thermal management system, electric drive thermal management system and engine thermal management system. The existing engine thermal management circuit and the battery system circuit are relatively independent, and the intercommunication between the circuits cannot be realized, so the heating of the battery by the engine cannot be realized. In addition, the existing electric drive thermal management system is independent of the air conditioner thermal management system and the battery thermal management system. The heating of the battery mainly depends on the battery heater for heating. The radiator dissipates hea...
Claims
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IPC IPC(8): B60H1/04B60K11/04H01M10/613H01M10/615H01M10/625
CPCB60H1/04B60K11/04H01M10/615H01M10/613H01M10/625Y02E60/10
Inventor 凌和平黄伟王刚蔡树周宋淦
Owner BYD CO LTD