Electric power supply system for oil-electric hybrid vehicle

Abstract

The invention discloses an electric power supply system for an oil-electric hybrid vehicle, which comprises a battery pack used for generating a direct current voltage and an inverted power module. The direct current voltage is converted into a direct current high voltage required by a drive motor of the oil-electric hybrid vehicle by the inverted power module. Under the condition of ensuring the due effects of power supply, the electric power supply system can greatly reduce the number of batteries in the battery pack and reduce the cost and weight of the product, and due to the reduction in the number of the batteries, reduces connection among the batteries and unreliable factors to make more reliable the connection and relatively simpler process operations.

Description

technical field [0001] The present invention relates to an electric power supply system, in particular to an electric power supply system for a gasoline-electric hybrid vehicle. Background technique [0002] When driving in the city, due to red lights and traffic congestion, about 30% of the energy of a locomotive using an internal combustion engine in stop-and-go conditions is converted into heat and disappears in the environment when braking. On the one hand, energy costs are increasing day by day, on the other hand On the one hand, the voice of environmental protection is rising, so it is imperative to store the wasted energy. The gasoline-electric hybrid vehicle uses the method of increasing the energy storage system to recover braking energy, and at the same time, it can assist when climbing or accelerating. Internal combustion engine drive. [0003] HEV (Hybrid-Electric Vehiclel) - a hybrid device. A hybrid vehicle uses an engine and an electric motor to drive the wh...

AI Technical Summary

Problems solved by technology

[0004] For the power supply device required by the hybrid electric vehicle, there are currently similar products on the market that connect lithium iron phosphate batteries in series to meet the voltage required by the hybrid electric vehicle, but currently there are generally the following three Problems: 1. The cost of lithium iron phosphate batteries is high and heavy. For example, the current 320v system requires up to 100 batteries. The time is too cumbersome, the number of connections is large, there are many unsafe factors, there are hidden dangers in reliability, and the quality of the production process is difficult to control

[0005] To sum up, it can be seen that the power supply system of gasoline-electric hybrid electric vehicles using lithium iron phosphate batteries in the prior art requires too many batteries, long charging time when the power is insufficient, cumbersome assembly, high cost and heavy, and easy connection due to the large number of connections. Therefore, it is necessary to propose improved technical means to solve this problem

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