A kind of energy distribution method, equipment and medium of automobile hybrid energy storage system

A hybrid energy storage system and automobile technology, which is applied in vehicle energy storage, electric vehicles, genetic rules, etc., can solve the problems of not considering the driver's driving style and driving without human beings, so as to achieve reasonable and effective energy distribution and reduce discharge Current multiplier, the effect of ensuring robustness

Active Publication Date: 2022-07-01
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0005] At the same time, the current electric vehicles still cannot be separated from human driving, and human driving style will have a non-negligible impact on the energy consumption of electric vehicles
None of the current allocation strategies for hybrid energy storage systems take into account the driver's driving style

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  • A kind of energy distribution method, equipment and medium of automobile hybrid energy storage system
  • A kind of energy distribution method, equipment and medium of automobile hybrid energy storage system
  • A kind of energy distribution method, equipment and medium of automobile hybrid energy storage system

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Embodiment Construction

[0045] This embodiment is carried out based on the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, and further explains the technical solution of the present invention.

[0046] This embodiment provides an energy distribution method for a hybrid vehicle energy storage system that considers driving style, and is used to distribute the energy of the vehicle hybrid energy storage system. The vehicle hybrid energy storage system in this embodiment adopts an improved semi-active topology, such as figure 1 As shown, including: lithium battery, super capacitor, bidirectional DC / DC converter, switch, diode, DC / AC inverter; the moving end of the switch is connected to the super capacitor or lithium battery, and the fixed end of the switch is connected to the bidirectional DC / DC The first end of the converter is connected, and the second end of the bidirectional DC / / DC converter is connected to the first end of...

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Abstract

The invention discloses an energy distribution method, equipment and medium of an automobile hybrid energy storage system, wherein the method is as follows: according to the average acceleration, average deceleration and acceleration and deceleration frequency of the driver's historical multiple driving, judging the driving style of the driver , can be aggressive type, standard type, calm type; according to the average power value of the car's historical driving and the average voltage of the lithium battery platform area, the average current of the lithium battery-driven car is calculated; according to the different driving styles of the driver, and based on the average current of The driver drives the car to set the corresponding logic threshold current of the lithium battery; based on the set logic threshold current of the lithium battery, the working current of the lithium battery and the super capacitor in the hybrid energy storage system of the vehicle is controlled. The invention can prolong the life of the lithium battery in the hybrid energy storage system of the electric vehicle and reduce the energy consumption of the hybrid energy storage system.

Description

technical field [0001] The invention relates to the field of electric vehicle energy storage, in particular to an energy distribution method, device and medium for a vehicle hybrid energy storage system considering driving style. Background technique [0002] As one of the core technologies of electric vehicles, with the rapid development of electric vehicles, higher and higher requirements are placed on battery technology. At present, lithium batteries are the power batteries with the largest market share. The reason is that compared with lead-acid batteries and nickel-metal hydride batteries, there are three main advantages: first, high energy density; second, high energy conversion rate; third, low self-discharge rate. Although lithium batteries meet the needs of electric vehicles for high energy density, they cannot meet their needs for high power density. When electric vehicles often encounter situations that require high-power discharge such as acceleration, climbing,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H02J7/34B60L58/13G06N3/00G06N3/12
CPCH02J7/0048H02J7/345B60L58/13G06N3/006G06N3/126H02J2207/50Y02T10/70
Inventor 胡林田庆韬黄晶李亮胡晓松
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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