Highly integrated hub SR motor direct drive device
A high-integration, driving-device technology, applied in motors, electric vehicles, control drives, etc., can solve the problems of low integration and high efficiency, and achieve the effects of high integration, high efficiency, and reduced torque ripple
Active Publication Date: 2016-03-23
众泰新能源汽车有限公司
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Problems solved by technology
[0006] In order to overcome the low integration level of the existing SR motor speed control technology and the inability to obtain higher efficiency in the low-speed section and the high-speed section at the same time, the present invention provides a high-integration technology that can achieve both low-speed section and high-speed section. Highly integrated in-wheel SR motor direct drive for higher efficiency
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Embodiment Construction
[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] refer to Figure 1~Figure 6 , a highly integrated wheel hub SR motor direct drive device, the SR motor is powered by a battery pack, the battery pack includes 2N batteries, N is a positive integer, and the 2N batteries are connected in series and parallel to achieve m levels of voltage levels , U1, U2, ..., Um from low to high, m is a natural number greater than or equal to 2, wherein the lowest level of voltage U1 is the rated voltage U of a single storage battery, the highest level of voltage Um is 2NU, the series-parallel The constraint conditions are: the operating conditions of each battery are the same, and the switching between different voltage levels is realized through contactor adjustment; the rated speed of the electric vehicle SR motor is set to m-1 voltage regulation speed nodes, from low to The high order is V1, V2, ..., Vm-1;
[0023] The drive...
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The invention discloses a high-integration-degree hub SR (Switched Reluctance) direct drive device. A storage battery pack comprises 2N storage batteries, voltage classes in m stages are realized by the 2N storage batteries through series-parallel connection, the operation conditions of all storage batteries are the same, and the switching between different voltage classes is realized through the adjustment of a contactor; (m-1) voltage-regulating speed nodes are set for the rated speed of an electric automobile SR motor, and a drive controller comprises a dispatching control module which is used for controlling the power supply voltage of the storage battery pack to be U1 when the rotating speed is less than V1, controlling the power supply voltage of the storage battery pack to be U2 when the rotating speed is not less than V1 and less than V2, and according to such a mode, controlling the power supply voltage of the storage battery pack to be Um when the rotating speed is not less than V(m-1); a wheel rim is internally and simultaneously integrated with an SR motor and the drive controller, the SR motor is connected with the drive controller, and the drive controller is respectively connected with a positive power line, a negative power line and a bundle of control buses. According to the high-integration-degree hub SR direct drive device disclosed by the invention, the integration degree is high, and the obtaining of higher efficiency both in a low-speed stage and a high-speed stage can be realized.
Description
technical field [0001] The invention relates to the technical field of SR motor control, in particular to an SR motor control device. Background technique [0002] With the deepening of energy conservation and emission reduction, electric vehicles have been recognized as energy-saving and environmentally friendly future vehicles. However, any type of electric vehicle including fuel cells, hybrid power or pure electric vehicles needs to use the motor as an actuator to drive the wheels. Therefore, how to give full play to the advantages of the motor and choose a better drive structure for the promotion and application of electric vehicles Significant. Based on multiple theoretical analyzes of vehicle dynamics, motor drive and automatic control engineering, the use of in-wheel motors to directly drive electric vehicles can summarize the following advantages: Simplify the mechanical structure and reduce the self-weight of the vehicle to facilitate the structural layout of the v...
Claims
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IPC IPC(8): B60L11/18B60L15/20H02K19/10
CPCY02T10/64Y02T10/70Y02T10/72
Inventor 王贵明董炜江张华张晓
Owner 众泰新能源汽车有限公司