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Master-slave dual-motor transmission device, driving system and electric engineering vehicle

A transmission device and main motor technology, applied in the direction of electric power devices, electric vehicles, power devices, etc., can solve problems such as difficult dual-motor continuous power coupling control, high cost, and difficult to meet the needs of compound drive control, etc., to achieve Improved power and economy, low cost, and improved service life

Active Publication Date: 2021-09-21
JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the dual-motor power coupling system proposed in the prior art can satisfy pure electric vehicles with a single drive configuration, it is difficult to meet the compound drive control requirements of electric engineering vehicles with two operating systems, and it is difficult to achieve dual-motor continuous driving. Power coupling control, and high cost

Method used

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  • Master-slave dual-motor transmission device, driving system and electric engineering vehicle
  • Master-slave dual-motor transmission device, driving system and electric engineering vehicle
  • Master-slave dual-motor transmission device, driving system and electric engineering vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] See attached figure 1 , a master-slave dual-motor transmission device, including a master motor M1, a slave motor M2, a power output shaft S-out, a forward gear clutch CF, a reverse gear clutch CR, a power coupling transmission unit, a first power transmission unit and a second power transmission unit The power transmission unit, the forward gear clutch CF and the reverse gear clutch CR are installed on the output shaft of the main motor M1, and the power coupling transmission unit is connected between the output shaft of the main motor M1 and the output shaft of the slave motor M2. The first power transmission The unit transmission is connected between the forward gear clutch CF and the power output shaft S-out, and the second power transmission unit is transmission connected between the reverse gear clutch CR and the power output shaft S-out,

[0041] The output shaft of the main motor M1 is provided with a first power output terminal, and the power output shaft S-out...

Embodiment 2

[0055] See attached figure 2 , a master-slave dual-motor drive system, including any one of the above-mentioned master-slave dual-motor transmission device, and also includes a driver operation input terminal, a low-voltage power supply, a power source and a main control system, and the signal connection of the driver operation input terminal To the main control system, the low-voltage power supply provides power for the main control system, the power source provides power for the main motor M1, and the low-voltage power supply provides power for the slave motor M2. The main control system executes the following control process, see the attached image 3 :

[0056] a. According to the driver's operation input terminal information and vehicle status information, identify the current required operation and / or driving torque and the current speed of the main motor M1 and the slave motor M2;

[0057] b. Based on the principle of maximizing motor efficiency, calculate the maximum...

Embodiment 3

[0063] See attached figure 2 , an electric engineering vehicle, including any one of the above-mentioned master-slave dual-motor drive system, and also includes a working system and a walking system, the output shaft of the main motor M1 is connected to the working system, and the power output shaft S-out is connected to the walking system , through the coupling control of the main motor M1 and the slave motor M2 to control the power output to complete the required work and driving functions.

[0064] Compared with the prior art, the advantages of the master-slave dual-motor transmission device, control system and electric engineering vehicle of the embodiment of the present invention are:

[0065] Aiming at the operation and driving power requirements of electric engineering vehicles, the present invention designs a master-slave dual-input-two-output dual-motor transmission device. The main driving motor is directly connected to the hydraulic system and connected to the driv...

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Abstract

The invention relates to a master-slave dual-motor transmission device, a driving system and an electric engineering vehicle, which are driven by adopting a structure of a master motor and a slave motor with output torques capable of being coupled, and coordinated control is performed through a master control system, so that various working condition requirements of the whole vehicle can be met, and particularly, the requirement of instant high power can be met; the operation characteristics of the two motors are fully utilized, power output and operation efficiency are guaranteed, on the other hand, the double motors have certain power redundancy design, a transmission device is simpler in design, reliability and economical efficiency of the whole machine are improved, integration of engineering machinery double-motor driving is facilitated, whole machine arrangement is more compact, space is saved, and meanwhile the motor often works in a high-efficiency interval, the overload condition is less, and the service life of the motor is prolonged.

Description

technical field [0001] The invention relates to the technical field of electric engineering vehicles, in particular to a master-slave dual-motor transmission device, a drive system and an electric engineering vehicle. Background technique [0002] In order to meet the continuous improvement of construction operation efficiency and the requirements of environmental protection, construction vehicles are gradually developing in the direction of electrification. At present, the basic configuration of engineering vehicles is to directly use the motor instead of the engine as the power source or use a separate set of motors for walking and operation. The form of a single motor will make the motor stay in the low-efficiency and low-torque area for a long time, and the economy of the vehicle is poor. However, the dual-motor system does not give full play to the flexible characteristics of motor control and the power coupling between the two under certain important working conditions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/02B60K17/00B60K1/02B60L15/20
CPCB60K17/02B60K17/00B60K1/02B60L15/2054Y02T10/64Y02T10/72
Inventor 薛卡詹东安梁岩岩石国国
Owner JIANGSU ADVANCED CONSTR MASCH INNOVATION CENT LTD
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