Novel power system of hybrid electric vehicle and circuit control method thereof

A hybrid electric vehicle and power supply system technology, which is applied in the direction of battery/fuel cell control devices, electric vehicles, and the layout of multiple prime movers of general power plants, and can solve the problems of low energy density and high self-discharge rate of supercapacitors , to achieve the effect of safe use, low self-discharge rate and balanced voltage

Pending Publication Date: 2017-08-11
SHANGHAI CAPENERGY TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new power supply system and circuit control method for hybrid electric vehicles to so

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  • Novel power system of hybrid electric vehicle and circuit control method thereof

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Embodiment 1

[0031] The novel power supply system of the hybrid electric vehicle disclosed by the present invention, its circuit diagram is as follows figure 1 As shown, the power supply system mainly includes a capacitor part 1 and a high voltage part 2, and signal transmission is performed between the capacitor part 1 and the high voltage part 2 through a communication harness. Wherein the capacitance part 1 mainly includes the lithium ion capacitor Pack for the hybrid electric vehicle power supply, this lithium ion capacitor Pack is made up of several (this embodiment adopts 7) lithium ion capacitor modules 1.1 connected in series, each lithium ion capacitor module 1.1 It consists of several (12 in this embodiment) lithium ion capacitor monomers connected in series.

[0032] A manual maintenance switch 1.10 is arranged on the series circuit of the lithium ion capacitor modules 1.1, and the manual maintenance switch 1.10 divides several lithium ion capacitor modules 1.1 into two parts (i...

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Abstract

The invention discloses a novel power system of a hybrid electric vehicle. The power system comprises a capacitance part and a high-voltage part which conduct signal transmitting through communication wiring harnesses. The capacitance part mainly comprises lithium-ion capacitance Pack and a master control BMS board, wherein one end of the master control BMS board is connected to the anode end of the lithium-ion capacitance Pack, and the other end of the master control BMS board is connected to the cathode end of the lithium-ion capacitance Pack through an electric current sensor. The master control BMS board is further connected with a slave control BMS board which is connected with a slave control relay, and the slave control relay is connected with and controls a fan. The high-voltage part comprises a relay C used for controlling on-off of an anode charging-discharging port circuit, a relay D used for controlling on-off of a pre-charging port circuit and a relay E used for controlling on-off of the cathode end of the lithium-ion capacitance Pack. On-off of the anode end of the lithium-ion capacitance Pack is further controlled by the relay C and the relay D. The invention further discloses a circuit control method of the power system. According to the novel power system of the hybrid electric vehicle and the circuit control method thereof, the voltage is balanced between lithium-ion capacitance single bodies, and a circuit control system is safe and reliable in use.

Description

technical field [0001] The invention relates to a novel power supply system and circuit control method for a hybrid electric vehicle. Background technique [0002] At present, energy problems are becoming increasingly prominent, and people are beginning to seek new energy sources to improve energy utilization efficiency. Hybrid electric vehicles have the characteristics of high efficiency, energy saving and environmental protection, so they are concerned and valued by people in the automobile industry. The power system is the core component of a hybrid electric vehicle. Improving the discharge energy efficiency of the power battery, prolonging the service life of the power battery, and improving the recovery rate of braking energy are one of the key factors for the development of efficient operation of hybrid electric vehicles. [0003] In the prior art, a hybrid electric vehicle uses a supercapacitor as an auxiliary starting power system. Although supercapacitors can meet...

Claims

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Application Information

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IPC IPC(8): B60K6/28B60L3/00B60L11/18
CPCB60K6/28B60L3/00B60L58/10Y02T10/70
Inventor 梁亚青廖运平蔡晓庆尹传丰
Owner SHANGHAI CAPENERGY TECH CO LTD
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