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Integrated vehicle control tactics for serial mixed power vehicle

A hybrid vehicle and vehicle control technology, which is applied in the drive control of hybrid vehicles, high-power drive and energy management, and the vehicle control strategy of series hybrid vehicles, can solve the problem of poor battery use conditions and fuel economy. Reduce performance degradation, impact on the cycle life of power battery packs, etc., to achieve the effects of reducing harmful exhaust emissions, improving fuel economy, and ensuring power performance

Inactive Publication Date: 2007-04-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0004] However, the currently known serial hybrid vehicle control strategy (Control Strategy of Serial HEV), in order to ensure the power of the hybrid vehicle, controls the engine at a high power and constant speed, which makes the fuel economy of the vehicle worse; , the current known battery management system control strategy is also very simple, which makes the battery use bad conditions, and the cycle life of the power battery pack is affected

Method used

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  • Integrated vehicle control tactics for serial mixed power vehicle
  • Integrated vehicle control tactics for serial mixed power vehicle
  • Integrated vehicle control tactics for serial mixed power vehicle

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] If the hybrid vehicle is driving on an off-road surface, due to the large road resistance coefficient and high road load, the vehicle should select the high mobility mode. In this mode, the engine works in a heavy load area with high output power; the power battery pack is connected to the DC bus to output auxiliary power; the output power of the two is coupled by current to drive the motors on both sides to overcome the ground resistance torque. In this mode, the driving power reserve is sufficient, which can overcome the large resistance of the off-road road and maintain the off-road speed of the vehicle.

[0019] If the hybrid vehicle climbs a slope or runs at high speed, the driver should select the high mobility mode due to the large driving resistance. In this mode, the engine works in a heavy load area with high output power; the...

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Abstract

The present invention belongs to the field of running control technology of mixed power vehicle, and is especially integrated vehicle control strategy for mixed power vehicle. The integrated vehicle control strategy is suitable for dynamical control and energy system management of great power mixed power vehicle, especially mixed power passenger vehicle and crawler vehicle. The integrated vehicle control strategy for improving vehicle drive performance, lowering fuel oil consumption, raising environment protecting performance and prolonging service life of cell includes four basic operation modes, including high mobility mode, high economical efficiency mode, normal running mode and silencing running mode for the vehicle driver to select.

Description

technical field [0001] The invention belongs to the technical field of drive control of hybrid electric vehicles (HEV, Hybrid Electric Vehicle), and particularly relates to the high-power drive and energy management technology of series hybrid electric vehicles. More precisely, the invention proposes a series hybrid The vehicle control strategy for power vehicles is suitable for hybrid vehicles such as buses and tracked military vehicles that use series hybrid systems. Background technique [0002] In order to cope with the increasingly stringent environmental protection regulations worldwide and the shortage of oil resources in the future, electric vehicle (EV, Electric Vehicle) technology has become a research hotspot in the field of automotive engineering. Compared with pure electric vehicles and fuel cell vehicles (FCEV, Fuel Cell Electric Vehicle), the cost of hybrid electric vehicles (HEV, Hybrid Electric Vehicle) is relatively low, and key technologies are easier to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/08B60W10/26B60W20/00B60W20/10B60W30/182
CPCY02T10/84
Inventor 孙逢春张承宁曹磊
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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