Power system of hybrid electric vehicle
A technology for electric vehicles and power systems, applied in the automotive field, can solve problems such as insufficient battery life and long charging time, and achieve zero fuel consumption and avoid pollution.
Active Publication Date: 2015-06-03
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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[0004] The invention provides a power system for a hybrid electric vehicle, which uses a high-capacity battery and a high-power battery to provide energy to the motor to drive the vehicle, and solves the problems of insufficient battery life and long charging time of the existing electric vehicle
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[0015] The present invention provides a power system of a hybrid electric vehicle, which will be described in detail below with reference to the accompanying drawings.
[0016] Such as figure 1 The electric vehicle power system shown includes: a battery unit composed of a first battery, a second battery and a controller; a motor and a drive shaft. The battery unit provides energy to the motor, and the motor drives the drive shaft to rotate to realize the running of the vehicle.
[0017] The controller controls the energy distribution provided by the first battery and the second battery to the motor. The energy distribution strategy of the controller is as follows: when the first battery can provide the energy required by the vehicle, the first battery alone provides energy; when the energy provided by the first battery cannot meet the energy required by the vehicle , through the cooperation of the second battery and the first battery, they jointly output energy to the motor ...
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The invention discloses a power system of a hybrid electric vehicle. The power system of the hybrid electric vehicle comprises a motor and a driving shaft, wherein the motor drives the driving shaft to rotate so as to supply power to the vehicle. The power system of the hybrid electric vehicle further comprises a first battery, a second battery and a controller, wherein the first battery and the second battery are used for supplying energy to the motor, and the controller is used for controlling distribution of the energy supplied by the first battery and the second battery to the motor. When the first battery is capable of supplying required energy of the vehicle, the first battery supplies the energy individually; and when the energy supplied by the first battery cannot meet the energy requirement of the vehicle, the second battery cooperates with the first battery to jointly output the energy to the motor so as to drive the vehicle to run. Specifically, the energy supplied by the second battery is the balance between the energy supplied by the first battery and the required energy of the vehicle.
Description
technical field [0001] The invention relates to the field of automobiles, in particular to a hybrid electric vehicle power system. Background technique [0002] Traditional fuel vehicles not only pollute the environment, but also affect human health. Therefore, actively reducing vehicle exhaust pollution has far-reaching practical significance. [0003] The clean energy vehicles that appear on the market now mainly refer to hybrid vehicles and pure electric vehicles. Existing hybrid vehicles are equipped with two power sources at the same time: thermal power source (generated by traditional gasoline engine or diesel engine) and electric power source (battery and electric motor). By using electric motors on hybrid electric vehicles, the power system can be flexibly adjusted according to the actual operating conditions of the vehicle, while the engine keeps working in the area with the best overall performance, thereby reducing fuel consumption and emissions. Compared with t...
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IPC IPC(8): B60K6/22B60K6/28
Inventor 孙全杜志强金启前由毅吴成明赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD