Pure electric vehicle power assembly rear suspension and arrangement system thereof
A technology of powertrain and pure electric vehicle, which is applied to electric power units, power units, control units, etc., and can solve problems such as poor vibration isolation.
Pending Publication Date: 2019-04-23
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
[0004] The purpose of the present invention is to provide a pure electric vehicle powertrain rear mount and its arrangement system, which adopts the arrangement form of the powertrain three-point mount on the rear sub-frame, which solves the problem of poor vibration isolation in the powertrain mount improve the reliability of the powertrain and the comfort of the car users
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[0025] The embodiments of the patent of the present invention are described in detail below. The examples of the claimed embodiments are shown in the accompanying drawings, wherein the same or similar symbols represent the same or similar originals throughout. The following embodiments are only exemplary and can only be used To explain and illustrate the technical solution of the present invention, but not be construed as a limitation on the technical solution of the present invention.
[0026] In the present invention, under the situation not described to the contrary, the orientation words used such as "up, down, left, right" usually refer to the up, down, left, and right along the direction of automobile advancement, and are the same as the up, down, left, and right in the accompanying drawings. Down, left and right are the same.
[0027] Embodiments of the present invention: as figure 1 As shown, a rear suspension of electric vehicle powertrain and its layout system, incl...
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The invention discloses a pure electric vehicle power assembly rear suspension and arrangement system design thereof. A power assembly is arranged on a rear auxiliary frame assembly by adopting a three-point-type suspension structure; motor left front suspension cushion and left rear suspension cushion, along an automobile forward direction (the direction is used as a standard in the text), in a power assembly rear suspension system are used for bearing the weight of the power assembly, and absorbing spontaneously generated excitation and ground excitation during running of the power assembly;and a motor right suspension assembly is mainly used for limiting a degree of freedom in a horizontal direction of the power assembly, increasing lateral stability, and isolating torque vibration generated during running of a motor. Compared with the prior art, the power assembly rear suspension system disclosed by the invention is capable of effectively reducing the generated overlarge displacement effect to the power assembly by 11 Hz low-frequency resonance generated in a starting moment of an electric vehicle, and meanwhile, meeting NVH (Noise, vibration and harshness) requirements in a high rotation speed working condition of the motor and during rapid acceleration and emergency braking of the power assembly.
Description
technical field [0001] The invention belongs to the field of electric vehicles, and specifically refers to a pure electric vehicle power assembly rear mount and an arrangement system thereof. Background technique [0002] With the continuous upgrading of the country's requirements for energy saving and emission reduction of automobiles, new energy vehicles have received strong support and development at home and abroad, especially pure electric vehicles. The powertrain of a traditional car is a fuel engine and a transmission. Unlike this, the powertrain of an electric vehicle is an electric motor and a reducer. Since the motor housing does not have a mounting position, it is necessary to effectively arrange the power assembly and additionally design an auxiliary mounting assembly. At present, many powertrains are directly connected to the longitudinal beam of the vehicle body through the suspension bracket, and the height difference between the height of the motor and the s...
Claims
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Login to View More IPC IPC(8): B60K1/00B60K17/06F16F15/08
CPCF16F15/08B60K1/00B60K17/06
Inventor 王振波王文平郑文举
Owner HARBIN UNIV OF SCI & TECH