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Dynamic coupling transmission system of wheel motor for multi-axle vehicle

A wheel-side motor and transmission system technology, applied to vehicle components, control devices, transportation and packaging, etc., can solve the problems affecting the off-road performance of multi-axle vehicles, increase the power of a single wheel hub motor, and increase the power of the wheel hub motor, so as to improve off-road Maneuverability, realization of lateral torque orientation function, effect of improving utilization

Active Publication Date: 2016-04-06
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For multi-axle vehicles such as 6×6 and 8×8, due to the large weight of the vehicle equipment, the power of the hub motor is required to be large, resulting in a large unsprung mass and affecting the ride comfort of the vehicle
In some off-road conditions, multi-axle vehicles often have some wheels or some axles suspended in the air and lose adhesion performance. At this time, the load on the hub motors of other axles increases, which requires good peak performance of the motor; but due to the vehicle volume space, Constraints such as the technical level of hub motors make it difficult to make up for it by increasing the power of a single hub motor, so it is difficult to avoid the lack of power under the off-road conditions of multi-axle vehicles, which affects the off-road performance of multi-axle vehicles
[0004] The distributed drive of multi-axis vehicles in the form of wheel motors can overcome the excessive unsprung mass of wheel hub motors, and can greatly improve the ride comfort and handling stability of the vehicle. However, because the wheel motors are independent of each other, there are still special roads such as off-road Under working conditions, some axles lose power, other axle loads increase or lack of power

Method used

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  • Dynamic coupling transmission system of wheel motor for multi-axle vehicle
  • Dynamic coupling transmission system of wheel motor for multi-axle vehicle
  • Dynamic coupling transmission system of wheel motor for multi-axle vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1, see attached figure 1 , 6×6 vehicle wheel side motor power coupling transmission system, the generator 2 is connected with the motor equipped with the power battery pack 4 and the generator controller 3; the engine 1 is connected with the generator 2, and the generator 2 is driven to convert the mechanical power into Electric energy, motor and generator controller 3 are connected to 4 wheel side motors 11a, 11b, 11c, 11d of the second axis and the third axis;

[0051] Wheel side motors 11a, 11b, 11c, 11d are connected with two-speed transmission mechanisms 13a, 13b, 13c, 13d, and two-speed transmission mechanisms 13a, 13b, 13c, 13d are connected with wheel side motor reduction mechanisms 12a, 12b, 12c, 12d, The output of the wheel side motor reduction mechanism 12a, 12b, 12c, 12d drives the wheel through the transmission shaft;

[0052] A differential 10 is provided between the wheel motors 11a and 11b of the second shaft, and a differential 15 is provide...

Embodiment 2

[0055] Embodiment 2, see attached figure 2 , 6×6 vehicle wheel side motor power coupling transmission system, the generator 2 is connected with the motor equipped with the power battery pack 4 and the generator controller 3; the engine 1 is connected with the generator 2, and the generator 2 is driven to convert the mechanical power into Electric energy, motor and generator controller 3 are connected to 4 wheel side motors 11a, 11b, 11c, 11d of the second axis and the third axis;

[0056] Wheel side motors 11a, 11b, 11c, 11d are connected with two-speed transmission mechanisms 13a, 13b, 13c, 13d, and two-speed transmission mechanisms 13a, 13b, 13c, 13d are connected with wheel side motor reduction mechanisms 12a, 12b, 12c, 12d, The output of the wheel side motor reduction mechanism 12a, 12b, 12c, 12d drives the wheel through the transmission shaft;

[0057] A differential 10 is provided between the wheel motors 11a and 11b of the second shaft, and a differential 15 is provid...

Embodiment 3

[0060] Embodiment 3, see attached image 3 , 8×8 vehicle wheel side motor power coupling transmission system, the generator 2 is connected with the motor equipped with the power battery pack 4 and the generator controller 3; the engine 1 is connected with the generator 2, and the generator 2 is driven to convert the mechanical power into Electric energy, motor and generator controller 3 are connected to 4 wheel side motors 11a, 11b, 11c, 11d of the second axis and the third axis;

[0061] Wheel side motors 11a, 11b, 11c, 11d are connected with two-speed transmission mechanisms 13a, 13b, 13c, 13d, and two-speed transmission mechanisms 13a, 13b, 13c, 13d are connected with wheel side motor reduction mechanisms 12a, 12b, 12c, 12d, The output of the wheel side motor reduction mechanism 12a, 12b, 12c, 12d drives the wheel through the transmission shaft;

[0062] A differential 10 is provided between the wheel motors 11a and 11b of the second shaft, and a differential 15 is provide...

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Abstract

The invention belongs to the technical field of vehicle power transmission, and particularly relates to a multi-axle vehicle hub motor dynamic coupling transmission system. The multi-axle vehicle hub motor dynamic coupling transmission system is composed of four hub motors, a two-gear gearbox of the hub motors, a plurality of differential mechanisms and a plurality of interaxial power distribution clutches. A tandem type electric transmission mode is adopted for a whole vehicle, an electric generator is driven by an engine to convert mechanical power into electric energy, and the whole vehicle is driven to travel through the four hub motors and the two-gear gearbox of the hub motors. Dynamic coupling between the hub motors is achieved through the differential mechanisms and the interaxial power distribution clutches, and power is effectively transmitted to axles or wheels high in attachment property; the interaxial power distribution clutches are not combined in the normal travelling process and can achieve the interaxial differential function; meanwhile, 6*4 and 8*4 driving working conditions can be switched according to travelling working conditions. On one hand, electric power of the hub motors can be reduced, on the other hand, power utilization of the motors under the cross-country working conditions is improved, and higher cross-country maneuverability can be obtained.

Description

technical field [0001] The invention belongs to the technical field of vehicle power transmission, and in particular relates to a wheel-side motor power coupling transmission system. Background technique [0002] Distributed drive is the technical development direction in the field of vehicle transmission. Distributed drive in the form of in-wheel motors is the current mainstream technology, which can realize flexible and controllable power distribution between wheels and axles, and realize multi-axis vehicle transmission system and transfer system. functional integration. Each wheel of a small passenger car is driven by a hub motor. The four wheels can effectively average the power demand of the vehicle, reduce the power of each hub motor, achieve a small volume and weight, and obtain a reasonable unsprung mass. On the other hand, the in-wheel motor can flexibly control the power output of each wheel according to the adhesion performance of the road surface to achieve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K17/16B60K17/02B60K17/22
Inventor 彭增雄胡纪滨苑士华荆崇波魏超柳春旺
Owner BEIJING INSTITUTE OF TECHNOLOGYGY