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Multi-range-extender engine cooling device

A technology of engine cooling and range extender, which is applied in the direction of arrangement, transportation and packaging of the power unit and the combination of cooling of the power unit, which can solve the problems of poor utilization of heat, excessive heat loss, and loss, etc., to achieve Arrange flexible effects

Active Publication Date: 2018-07-10
ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the coolant is cooled, it will absorb a lot of heat. If the heat is not well utilized, it will enter the cooling device for cooling, so that the heat will be lost in the cooling process.
Especially in the cooling of multi-range extenders, the coolant needs to be heated twice or even multiple times during preheating, and more heat will be lost, which does not meet the requirements of energy saving and emission reduction

Method used

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  • Multi-range-extender engine cooling device
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  • Multi-range-extender engine cooling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1. This embodiment provides a dual-range extender engine cooling device. The specific scheme is as follows:

[0043] A dual-range extender engine cooling device includes: a first coolant circulation circuit, a second coolant circulation circuit and a preheating circuit.

[0044] The first coolant circulation circuit includes a first cooling circuit and a first warm air circuit, the first cooling circuit is used to cool the engine of the first range extender, and the first warm air circuit is used to provide the cockpit with warm air.

[0045]The second coolant circulation circuit includes a second cooling circuit and a second warm air circuit, the second cooling circuit is used to cool the engine of the second range extender, and the second warm air circuit is used to provide the cockpit with warm air.

[0046] The preheating circuit includes a one-way valve and an electronic water pump, and the electronic water pump can pump the high-temperature cooling li...

Embodiment 2

[0062] Embodiment 2, this embodiment proposes a multi-range extender engine cooling device, the specific scheme is as follows:

[0063] A multi-range extender engine cooling device includes: a first cooling liquid circulation circuit, a second cooling liquid circulation circuit, a third cooling liquid circulation circuit, etc., and also includes a first preheating circuit, a second preheating circuit, and the like.

[0064] The coolant circulation circuits all include a cooling circuit and a warm air circuit, the cooling circuit is used for cooling the corresponding range extender engine, and the warm air circuit is used for providing warm air to the cockpit.

[0065] The preheating circuit includes a one-way valve and an electronic water pump, and the electronic water pump can pump the high-temperature coolant in the coolant circulation circuit of the range extender engine started first into the coolant circulation circuit of the range extender engine started later , shorten ...

Embodiment 3

[0072] Embodiment 3, this embodiment proposes an engine warm-up method based on a multi-range extender engine cooling device, such as Figure 5 Shown is the start-up process of the preheating circuit, as follows:

[0073] S1. Start the engine of the first range extender first.

[0074] When the required output power of the vehicle is small, for example, when the car is unloaded, a range extender engine can be started to provide power for the car.

[0075] S2. Detect whether the coolant temperature of the engine of the first range extender reaches the set temperature.

[0076] When the coolant temperature reaches the set temperature, it means that it is difficult to load only one range extender engine. At this time, it is necessary to start the second range extender engine to provide greater output power. This situation may be that the vehicle has a certain load, rather than an empty state.

[0077] S3. Start the second range extender engine.

[0078] When the coolant tempe...

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Abstract

The invention discloses a multi-range-extender engine cooling device and belongs to the field of new energy. The multi-range-extender engine cooling device comprises heat dissipaters, electronic fans,expansion boxes, driving bin heaters, electronic water pumps, one-way valves and pipelines. The work mode can be controlled by a controller. A cooling loop is independently configured, that is, eachrange extender engine is provided with the corresponding heat dissipater, the corresponding electronic fan, the corresponding expansion box and the corresponding driving bin heater, and efficient cooling can be achieved according to the different requirements of the two range-extender engines. In the multiple range extender engines, the effect that one range extender engine independently works orthe multiple range extender engines jointly work can be achieved, meanwhile when the multiple range extenders jointly work, high-temperature cooling liquid of the firstly-started range extender engineis guided into the range extender engine started later, the pre-heating time of the engines is shorted, and the energy is saved.

Description

technical field [0001] The invention relates to the field of new energy, in particular to a multi-range extender engine cooling device. Background technique [0002] As the energy issue becomes more and more urgent, the development of new energy vehicles is becoming more and more urgent as the requirements for energy saving and emission reduction of the whole vehicle are getting higher and higher. The development of electric vehicles is a good way out. Electric vehicles are non-polluting, quiet and energy efficient. Especially in urban operation, where cars stop and go, and the driving speed is not high, electric vehicles are more suitable. [0003] However, at this stage, pure electric vehicles have limited cruising range, short battery life, small energy storage, and unsatisfactory mileage after one charge. Therefore, the development of extended-range electric vehicles is imperative. During the operation of the range extender engine, the advanced cooling device is an imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K11/02
CPCB60K11/02
Inventor 孙志勇蔡文远王洋石磊金灵珊
Owner ZHEJIANG GEELY NEW ENERGY COMML VEHICLES CO LTD
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