Force transmission method of electric wheel and vehicle using method
A technology of electric wheels and hubs, which is applied to the force transmission method and the field of vehicles using this method, which can solve the problems of difficult hub brake layout, large axial size of the reducer, and high speed of the brake, so as to reduce the axial size and improve the transmission speed. Efficiency, the effect of reducing the weight of the electric wheel
Active Publication Date: 2018-06-08
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
In order to achieve a large speed ratio reducer, the existing technology usually adopts a multi-stage planetary reduction technology solution. The axial size of the reducer is large, and the hub brake is difficult to arrange. However, the brake is arranged from the shaft end of the motor, which requires high brake speed and reduces the service life.
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[0043] Unless otherwise specified, the inner and outer directions in the present invention are relative to the vehicle as a whole, no matter whether it is the left or right electric wheel of the vehicle, the side close to the center of the vehicle along the axle direction is the inner side, and the side farther away from the center of the vehicle is the outer side.
[0044] The electric wheel of the present invention can be applied to various vehicles of the electric drive type, and is applied to the case of providing auxiliary power by electric power, such as a four-wheeled motor vehicle such as a fuel cell vehicle or an electric vehicle. It is especially suitable for electric vehicles with high torque and heavy load. But the invention is not limited to two-wheeled motor vehicles, golf carts or three- or four-wheeled vehicles for the elderly or disabled, medium and heavy-duty commercial vehicles for construction or transportation, and tracked vehicles.
[0045] Figure 1-5 T...
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The invention provides a force transmission method of an electric wheel and a vehicle using the method. The torque of a hub motor is transmitted from a rotor shaft of the motor to a sun wheel and thentransmitted from a planetary carrier to a wheel rim, and the force, performed on a suspension frame, of the whole vehicle is sequentially transmitted to the wheel rim through a steering knuckle end cover, a hub motor shell, a motor shaft end cover flange and a hub assembly. By means of the method, ground load of an electric wheel tire, motor power and mechanical braking force are reasonably transmitted in a hub, bearing and power transmission are independent, the size and weight of the electric wheel are reduced, the transmission reliability is improved, and the device is high in integrationdegree, compact in structure and especially suitable for large-torque, high-load heavy special vehicles.
Description
technical field [0001] The invention belongs to the technical field of electric driving of electric vehicles, and in particular relates to a force transmission method of electric wheels and a vehicle using the method. Background technique [0002] The electric wheel technology is also called the built-in motor technology in the wheel. The motor is also called the hub motor. The biggest feature is that the power device, the transmission device and the braking device are all integrated into the wheel hub, which greatly simplifies the mechanical part of the electric vehicle. Compared with other driving forms, it has many advantages such as short transmission chain, high transmission efficiency and flexible layout. The obvious advantages of electric vehicles using electric wheel technology in terms of overall vehicle layout, dynamic performance and control have attracted widespread attention from academia and industry. [0003] For electric vehicles, especially large tonnage, t...
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IPC IPC(8): B60K7/00B60K17/14B60B27/00
CPCB60B27/0052B60K7/0007B60K17/145B60K2007/0038Y02T10/86
Inventor 孙逢春李军求张承宁王志福李和言杨国栋
Owner BEIJING INSTITUTE OF TECHNOLOGYGY