Wheel independent drive system and method for controlling car traveling state through same
An independent drive and vehicle controller technology, which is applied in the wheel independent drive system to control the driving state of the vehicle, can solve the problems of high requirements for sealing convenience, increasing unsprung mass and wheel inertia, and reducing power transmission efficiency. , to achieve the effect of ensuring stability and handling, reducing the differential mechanism, and improving driving efficiency
Inactive Publication Date: 2015-09-09
杭州伯坦科技工程有限公司
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Problems solved by technology
[0003] In the prior art, electric vehicles generally use a single motor to drive the front wheel or a single motor to drive the rear wheel. The power transmission between the motor and the driving wheel is carried out through a transmission mechanism. When the two driving wheels are turning, a differential mechanism must be used to realize the steering. This increases the complexity of the car chassis and also reduces the power transmission efficiency
[0004] In the prior art, there is still a way of driving the hub motor, but the hub motor has the following problems: 1. The unsprung mass and the moment of inertia of the wheel are increased, which affects the handling stability of the vehicle; 2. The working environment of the hub motor is harsh, facing Influenced by water, dust and other aspects, there are also high requirements for the convenience of sealing; 3. In the design, the heat dissipation problem of the hub motor needs to be considered separately
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[0026] Such as figure 1 As shown, the present invention provides an independent wheel drive system, including a wheel, a vehicle controller 1 , a motor drive device 2 and a transmission device 3 . The vehicle controller 1 is connected to the control part of the motor drive device 2, and the motor drive device 2 is connected to the driving wheels through the transmission device 3 (or the motor drive device 2 is directly connected to the drive wheels, that is, the direct drive mode). Receive and send control signals between the controller 1 and the motor drive device 2; the motor drive device 2 receives the state information of the drive wheels while controlling the drive wheels, and the motor drive device 2 processes the state information and transmits it to the vehicle controller 1, The vehicle controller 1 processes the speed information sent from the motor drive device 2 to form a control signal, and then sends the control signal to the motor drive device 2, and the motor dr...
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The invention relates to a wheel independent drive system and a method for controlling the car traveling state through the same. The system comprises a whole car controller, at least two motor drive units, a car suspension, transmission units and wheels. The wheels comprise drive wheels and driven wheels. The motor drive units are arranged on the car suspension and belong to sprung mass, and the motor drive units are connected with the drive wheels in a direct drive mode or through the transmission units. The car travel state can be controlled by applying the system. The system and the method have the advantages that stable driving can be achieved without a differential mechanism, and technical defects of hub motor driving are prevented.
Description
technical field [0001] The invention belongs to the technical field of control of automobile wheels, and in particular relates to a wheel independent drive system and a method for controlling the running state of a vehicle using the wheel independent drive system. Background technique [0002] With the increasingly serious energy shortage and environmental pollution problems in the world, the development of electric vehicle technology has received extensive attention. Among them, multi-wheel independent drive electric vehicles are a new type of electric vehicle development direction. Due to their ideal control performance and With a good application background, it has received extensive attention in the industry. [0003] In the prior art, electric vehicles generally use a single motor to drive the front wheel or a single motor to drive the rear wheel. The power transmission between the motor and the driving wheel is carried out through a transmission mechanism. When the two...
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Login to View More IPC IPC(8): B60K7/00B60K17/356B60L15/20
CPCY02T10/72
Inventor 聂亮厉蒋范福龙
Owner 杭州伯坦科技工程有限公司