Distributed hybrid power system and control method thereof

A technology of hybrid power system and control method, applied in the field of distributed hybrid power system and its control, which can solve the problems of complex drive system structure, energy waste, low efficiency of hybrid power system, etc., achieve high system reliability and reduce energy consumption , Improve the effect of vehicle economy

Active Publication Date: 2018-10-19
BEIJING INST OF SPACE LAUNCH TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, unlike conventional vehicles, for multi-axle heavy-duty special vehicles, due to the complex structure of the drive system and the large number of devices working at the same time, there is often a hybrid system design scheme applied to special vehicles. The problem of low power system efficiency, resulting in energy waste

Method used

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  • Distributed hybrid power system and control method thereof
  • Distributed hybrid power system and control method thereof
  • Distributed hybrid power system and control method thereof

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Embodiment 1

[0037] Such as Figure 1 to 4 As shown, this embodiment discloses a distributed hybrid power system suitable for multi-axle special vehicles. The system includes a vehicle controller, a control unit and a power unit. The power unit is used to drive the wheels of a special vehicle, and the control unit is used to control the power unit. Among them, the number of power units corresponds to the total number of semi-axles of the special vehicle, and the vehicle controller is used To receive the driver's operating instructions and send power demand instructions to at least one control unit; the specific instructions are as follows.

[0038] Such as figure 1 As shown, the power unit includes an engine 1, a generator 2, a power distribution box 3, a power battery 4, a drive motor 5, a reduction box 6 and a half shaft 7. The engine 1 is connected to the generator 2, and the engine 1 and the generator 2 are composed together Auxiliary Power Unit (APU, Auxiliary Power Unit), generator 2 i...

Embodiment 2

[0043] Based on the same inventive concept as the first embodiment, this embodiment discloses the above-mentioned control method of the distributed hybrid power system. Specifically, this embodiment discloses a control method of the distributed hybrid power system. The control method includes the following step;

[0044] Step 1. After the driver sends an operation instruction, the vehicle controller receives and recognizes the driver's operation instruction, recognizes the driver's intention, and obtains the recognition result; in order to achieve reasonable control of the special vehicle, this embodiment uses the vehicle controller Judge whether the recognition result is wrong input information: If it is, then use the special vehicle instrument to feed back the prompt information, and re-execute step 1; if not, go to step 2. Such as image 3 As shown, in this embodiment, the vehicle controller can collect information such as accelerator pedal position, brake pedal position, gear...

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Abstract

The invention discloses a distributed hybrid power system and a control method thereof. The distributed hybrid power system comprises a vehicle controller, control units and power units, and the number of the power units is corresponding with the sum of special vehicle half shafts. The control method comprises the follow steps that operational instructions of a driver are received; vehicle requirement drive torque and the number of the required power units are determined, demand power of the power units is calculated, and power demand instructions are sent to power unit controllers of the control units; and engine rotating speed, engine torque and driving demand torque are calculated, rotating speed control instructions are sent to engine controllers, torque control instructions are sent to generator control units, power control instructions are sent to battery management devices, and driving control instructions are sent to driving motor controllers, so that devices are controlled towork. Power flow between components of the distributed hybrid power system can be coordinated, a working condition of power parts is optimized, and the aim of improving energy utilization rate of a special vehicle hybrid power system is achieved.

Description

Technical field [0001] The present invention relates to the technical field of multi-axle heavy special vehicles, and more specifically, the present invention is a distributed hybrid power system and a control method thereof. Background technique [0002] In order to make the vehicle have higher power and better economy, the hybrid power system is the preferred design scheme. However, unlike conventional vehicles, for multi-axle heavy-duty special vehicles, due to the complex structure of the drive system and the large number of equipment working at the same time, the existing hybrid power system design schemes applied to special vehicles often have hybrids. The problem of low efficiency of the power system has caused a waste of energy. [0003] Therefore, how to effectively improve the energy utilization efficiency of the hybrid power system of a special vehicle has become a technical problem to be solved urgently and a focus of research by those skilled in the art. Summary of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/10B60K6/52
CPCB60K6/52B60W20/10Y02T10/62
Inventor 杨波温博轩李洪彪吴学雷黄印玉岳会军项昆骆志伟宫佳鹏
Owner BEIJING INST OF SPACE LAUNCH TECH
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