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Double-motor driving power transmission system based on double-voltage platform

A power transmission system and dual-motor drive technology, applied in electric vehicles, capacitor traction, battery/battery traction, etc., can solve the problems of limited motor operation, low average power, poor economy, etc., and achieve reduced conduction loss, The effect of less energy loss and high energy utilization

Pending Publication Date: 2021-06-11
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This causes the average power of the vehicle to be much lower than the maximum power of the vehicle motor, resulting in a phenomenon of "excess power"
At the same time, the transmission sys

Method used

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  • Double-motor driving power transmission system based on double-voltage platform
  • Double-motor driving power transmission system based on double-voltage platform
  • Double-motor driving power transmission system based on double-voltage platform

Examples

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Example Embodiment

[0043] Example 1

[0044] Such as Figure 1 to 13 An embodiment of a dual motor driving power transmission system based on a dual voltage platform is shown in the present invention. A dual motor drive power transmission system based on a dual voltage platform, including a fuel cell, a supercapacitor, a single-way DC / DC converter, a two-way DC / DC converter, a low voltage Direflow bus, a high voltage DC, a first motor and its Controllers, second motors and their controllers and transmission modules. The fuel cell output is connected to the one-way DC / DC converter input terminal, one-way DC / DC converter output is connected to the low voltage DC bus input; the supercapacitor is connected to the low voltage DC bus input; the first motor and its controller Connect with the low voltage DC bus output. The low-voltage DC bus output is connected to the two-way DC / DC converter, the two-way DC / DC converter is connected to the high voltage DC bus, and the high voltage DC bus is conn...

Example Embodiment

[0061] Example 2

[0062] The present embodiment is similar to the first embodiment, and the present embodiment is in that the transmission module in the present embodiment is a CVT stepless transmission, and the CVT continuously variable transmission includes a third input shaft 14 connected to the first motor and its controller. The active wheel 15, the driven wheel 16, the intermediate shaft 17, the ninth gear 18, the tenth gear 19, and the second output shaft 20, and the active wheel 15 is fixed to the third input shaft 14; the driven wheel 16 and the drive wheel 15 pass through the drive belt Connected; the intermediate shaft 17 is connected to the driven wheel 16; the ninth gear 18 is connected to the intermediate shaft 17; the tenth gear 19 is engaged with the ninth gear 18, and is fixed to the second output shaft 20; one end of the second output shaft 20 The second motor and its controller are connected, and the other end is connected to the transmission output. The CVT co...

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Abstract

The invention provides a dual-motor driving power transmission system based on a dual-voltage platform, which comprises a fuel cell, a super capacitor, a one-way DC/DC converter, a two-way DC/DC converter, a low-voltage DC bus, a high-voltage DC bus, a first motor and a controller thereof, a second motor and a controller thereof, and a transmission module. The first motor and the controller thereof and the second motor and the controller thereof are connected with the transmission module, and the transmission module is further provided with a transmission output end. A double-voltage platform is adopted, and most energy requirements of the fuel cell electric vehicle are met by utilizing low-power energy conversion capability. Through the combination of the double motors and the transmission system, the energy utilization rate and the system transmission efficiency are improved, the problem of gear shifting power interruption is solved, and the vehicle running quality is improved.

Description

Technical field [0001] The present invention relates to the technical field of automobile drive systems, and more particularly to a dual motor driving power transmission system based on a dual voltage platform. Background technique [0002] With the increasing weight of environmental pollution and the trend of rigorous gasoline emission standards, the development of electric vehicles ushered in another rising period. At the same time, the expectations of electric vehicles are also increasingly expected. To achieve the transcendence of electric vehicles for fuel cars, it is necessary to improve the existing disadvantages of electric vehicles. The fuel cell vehicle is capable of injecting the fuel vehicle fuel speed due to its injection fuel speed, which has become the most potential to replace the fuel vehicle in the electric vehicle. The problem of slow charging and long charging time can find satisfactory solutions through the popularity of fuel cell vehicles. [0003] In the cu...

Claims

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Application Information

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IPC IPC(8): B60L50/40B60L50/70
CPCB60L50/40B60L50/70B60L2220/42Y02T10/70Y02T90/40Y02T10/72
Inventor 刘延伟陈启恩
Owner GUANGDONG UNIV OF TECH
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