A low temperature cooling system, method and device
A cooling system, low temperature technology, applied in the layout of the power unit cooling combination, power unit, transportation and packaging, etc., can solve the problems of reducing the performance and reliability of the whole vehicle, keeping the temperature difference from being too large, and increasing the cost of vehicle operation. To achieve the effect of ensuring work efficiency and service life
Active Publication Date: 2017-03-01
WEICHAI POWER CO LTD
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Problems solved by technology
[0003] The inventor found in practice that the low-temperature cooling system of the prior art is not suitable for hybrid vehicles (including two motor controllers of the left and right motor controllers, and two motors of the left and right motors). Hybrid vehicles have higher requirements for cooling. For the same component (such as left motor controller, right motor controller, or left motor, right motor), the temperature difference between the two should not be too large. Maintain within the same temperature range, otherwise it is easy to cause damage to components, shorten the service life of components, reduce the performance and reliability of the vehicle, and increase the operating cost of the vehicle
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[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0045] Before introducing the solutions of the present invention, the specific application scenarios of the present invention will be explained first.
[0046] As we all know, during the operation of hybrid vehicles (especially gasoline-electric hybrid vehicles, the high-voltage electrical components are greatly increased compared with tradit...
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The embodiment of the invention provides a subcooling system, method and device. The system comprises the following components, including an integrated radiator, an electric water pump, a generator controller, a left motor controller, a right motor controller, a generator, a left motor and a right motor, wherein the left motor controller is connected with the right motor controller in parallel, so as to form a shunt-wound motor controller unit; the left motor is connected with the right motor in parallel, so as to form a shunt-wound motor unit; the generator controller, the shunt-wound motor controller unit, the generator and the shunt-wound motor unit are connected in series, so as to form a subcooling loop; a cooling liquid inside the integrated radiator is output to a subcooling loop through the electric water pump and flows back to the integrated radiator through subcooling. Therefore, the problem of overhigh temperature difference of the same component in a hybrid power vehicle can be solved, and the work efficiency and the service life of the component are ensured.
Description
technical field [0001] The invention relates to the field of hybrid vehicles, in particular to a low-temperature cooling system, method and device suitable for hybrid vehicles. Background technique [0002] During the operation of the vehicle, the engine, motor and other components will generate some working heat, which will cause the temperature of the components themselves to rise continuously, affecting the working efficiency and service life of the components. In order to make each component work within an appropriate temperature range, vehicles are generally equipped with a low-temperature cooling system to ensure the normal operation of the components. [0003] The inventor found in practice that the low-temperature cooling system of the prior art is not suitable for hybrid vehicles (including two motor controllers of the left and right motor controllers, and two motors of the left and right motors). Hybrid vehicles have higher requirements for cooling. For the same c...
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IPC IPC(8): B60K11/04
Inventor 韩尔樑张桂梅刘林郭绪娜
Owner WEICHAI POWER CO LTD