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A drive strategy for hybrid electric bus

A technology of hybrid power and passenger cars, which is applied in the direction of hybrid power vehicles, motor vehicles, power plants, etc., can solve the problems of high utilization rate, fast decay of power supply life, and high demand for power supply energy, so as to improve the service life and avoid low Efficient operation and the effect of reducing the utilization rate

Pending Publication Date: 2019-01-04
TIANJIN SANTROLL ELECTRIC AUTOMOBILE TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0002] The hybrid electric bus system is divided into serial hybrid, parallel hybrid, and hybrid hybrid. At present, the series hybrid system is basically only used for range-extended vehicles. The parallel and hybrid hybrid systems are existing Commonly used systems, for parallel and hybrid hybrid systems, most of the driving methods are low-speed pure electric drive and high-speed engine direct drive. The energy utilization rate of the car, but because there are more opportunities to use the motor, the energy demand and utilization rate of the power supply used to provide the motor operation will be higher and the utilization rate will be higher. In addition, the technical bottleneck limit of the current power supply will lead to The life of the power supply decays quickly. Therefore, in order to improve the service life of the power supply without causing a major impact on the driving of the hybrid electric bus, it is necessary to further study the driving mode of the hybrid electric bus to ensure the service life of the power supply.

Method used

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  • A drive strategy for hybrid electric bus
  • A drive strategy for hybrid electric bus

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Embodiment Construction

[0014] The concrete implementation method of the present invention is as follows:

[0015] The driving strategy of the hybrid electric bus in the present invention is a driving strategy for protecting the power supply of the hybrid electric bus proposed for the hybrid electric bus. The hybrid power system includes an engine and an electric motor, and the engine is coaxially connected with the electric motor. The output end of the motor is connected to the rear axle of the vehicle, and the engine and the motor jointly drive the hybrid bus. When the hybrid bus is started, the motor alone drives the vehicle. When the vehicle speed reaches a certain value, the engine Intervention, the vehicle is jointly driven by the engine and the electric motor. When the vehicle speed reaches the high-efficiency zone of the engine, the vehicle is driven by the engine alone. Through the adjustment of the above-mentioned driving strategy, the engine can supplement the driving force of the vehicle f...

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Abstract

The invention discloses a driving strategy of a hybrid electric bus, the hybrid bus includes an engine, and a motor that are coaxially arranged, an output end of the motor is connected with a rear axle of the vehicle, the engine is driven in conjunction with the electric motor, the driving mode of the hybrid electric bus is sequentially that the electric motor drives separately, the electric motorand the engine are driven together, and the engine is separately driven, and the engine is used for supplementing part of the power when the output power of the electric motor is high, so as to reduce the usage amount and the usage rate of the power source, and to prolong the service life of the power source.

Description

technical field [0001] The invention relates to a driving method of a hybrid electric passenger car. Background technique [0002] The hybrid electric bus system is divided into series hybrid, parallel hybrid, and hybrid hybrid. At present, the series hybrid system is basically only used for range-extending vehicles, and the parallel and hybrid hybrid systems are the existing ones. Commonly used systems, for parallel and hybrid hybrid systems, most of the driving methods are low-speed pure electric drive and high-speed engine direct drive. The energy utilization rate of the car, but because there are more opportunities to use the motor, the energy demand and utilization rate of the power supply used to provide the motor operation will be higher and the utilization rate will be higher. In addition, the technical bottleneck limit of the current power supply will lead to The life of the power supply decays quickly. Therefore, in order to improve the service life of the power s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/48B60K6/28
CPCB60K6/28B60K6/48B60K2006/4808Y02T10/62
Inventor 孙永宾
Owner TIANJIN SANTROLL ELECTRIC AUTOMOBILE TECH CO LTD
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