CN205468609U

CN205468609U - Electric automobile's parallelly connected actuating system of many motors

Info

Publication number: CN205468609U
Application number: CN201620080725.0U
Authority: CN
Inventors: 王文伟; 孙逢春; 林程; 马军; 曹万科
Original assignee: Beijing Institute of Technology BIT
Current assignee: Beijing Institute of Technology BIT
Priority date: 2016-01-27
Filing date: 2016-01-27
Publication date: 2016-08-17
Anticipated expiration: 2026-01-27

Abstract

The utility model provides an electric automobile's parallelly connected actuating system of many motors, includes slim motor, integral key shaft, spline housing, many machine controller, vehicle control unit, as above slim motor in the middle of be the splined hole, the integral key shaft will a plurality of slim motor series be in the same place, the integral key shaft is transfered with power to every motor, transferes the spline housing with power through the integral key shaft, through the spline housing with power take off, transfer the vehicle driver bridge by the spline housing with power again during the drive vehicle, adopt car bus control method, many machine controller s are transfered to the change of power needs with the signal according to the vehicle to vehicle control unit, accelerator pedal, brake pedal and many machine controller intercommunication, and many machine controller are responsible for manageing the quantity of the work of getting into step by step of each motor, the size decision motor entering work of car power demand promptly, utilize a plurality of motors can better satisfy the drive requirement of car in the reasonable stack of power, torque, efficiency, rotational speed etc.

Description

A kind of many motor parallels drive system of electric automobile

Technical field

This utility model belongs to electric vehicle engineering field, more particularly, relates to many motor parallels drive system of a kind of electric automobile.

Background technology

Under the petroleum resources shortage pressure with environmental pollution, the development of new-energy automobile receives the great attention of countries in the world government and promotes with strength policy, and put into effect the most preferential and support policy, the most vigorous the advancing of auto industry revolution that have swepts the globe at tax revenue, the construction of charging and conversion electric station, preferential electricity price, preferential traffic environment, information industry, urban construction etc. aspect respectively.

Development along with motorcar electric, take network control technology that motor can carry out real-time moment of torsion to control to be possibly realized with rotating speed, hence around improving the serviceability of car load, overall efficiency, the research such as integrated, intelligent, occur in that various drive scheme.Multi-motor driving is exactly one of key technology therein.Technical scheme is usually the torque capacity parameter driving motor determining automobile according to operating modes such as automobile climbing, starting acceleration now, drives the maximum speed of motor according to max. speed operating condition design.If meeting above technology with a motor to require the motor of design, its power and volume are relatively big, and rotating speed is on the low side.Good in road conditions, start frequently under the operating mode of city, the motor power consumption that frequent starting one is bigger is big, and economy is poor；And under high-speed working condition, the power requirement to automobile is not maximum, but rotation speed requirements is maximum, does not increases again with a bigger motor speed.Design of electrical motor how is made to mate to be more rationally the problem that Driving Scheme person needs to solve.Therefore, with existing motor technology, dynamic property when meeting Automobile Complex driving cycle and cost-effectiveness requirement acquire a certain degree of difficulty.To this end, this case develops multi-motor driving technology, expand torque and the power threshold of motor, improve efficiency, reduce energy consumption.Advantage being had more for electric motor coach this case, because driving power big, implementing many motor schemes energy efficient more notable.To this end, multi-motor driving utilizes multiple motor can more preferably meet the driving requirement of automobile in the reasonable superposition of power, torque, efficiency, rotating speed etc., give full play to motorized, intelligentized advantage, be also an efficient low-consume, economic and practical technology path.

Summary of the invention

Many motor parallels drive system of a kind of electric motor car, is characterized in that: native system includes thin electric motor, splined shaft, spline housing, multi_motor control device, entire car controller；Being splined hole in the middle of thin electric motor as above, multiple thin electric motors are cascaded by splined shaft, and power is passed to splined shaft by each motor, by splined shaft, power is passed to spline housing, is outputed power by spline housing；By spline housing, power is passed to vehicle drive axle again when driving vehicle；Use automobile bus control method, entire car controller, accelerator pedal, brake pedal are in communication with each other with multi_motor control device, signal is passed to multi_motor control device by the change needed power according to vehicle, multi_motor control device is responsible for dispatching the quantity of the size decision motor entrance work that each motor substep enters work, i.e. power of vehicle demand.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of a kind of multi-motor driving assembly.

Fig. 2 is the decomposing schematic representation of a kind of multi-motor driving assembly.

Fig. 3 is the motor schematic perspective view of a kind of multi-motor driving assembly.

Fig. 4 is the control program figure of a kind of multi-motor driving assembly.

Detailed description of the invention

Fig. 1 is the schematic perspective view of a kind of multi-motor driving assembly, and in Fig. 1, symbol 1,2,3,4 is motor sequence number respectively, and in figure, symbol 8 is output spline housing.

Fig. 2 is the decomposing schematic representation of a kind of multi-motor driving assembly, and in figure, symbol 1,2,3,4 is motor sequence number respectively, and in figure, symbol 5 is T-shaped pad, in figure, symbol 6 is rear clamp nut, in figure, symbol 7 is front clamp nut, and in figure, symbol 8 is output spline housing, and in figure, symbol 9 is splined shaft.

Fig. 3 is the motor schematic perspective view of a kind of multi-motor driving assembly, and the symbol 1-1 in figure is splined hole, and the symbol 1-2 in figure is that motor connects installing hole.

Fig. 4 is the control program of a kind of multi-motor driving assembly, multi_motor control device in figure and entire car controller communication, receive the signal of entire car controller order, simultaneously comparison accelerator pedal and brake pedal, it is analyzed to identify and calculates motor driving parameter, and command motor to perform order, return again to the order implementation status of entire car controller form closed loop control to entire car controller simultaneously；Such as, need to be by the size of torque according to automobile, driver controls accelerator pedal output analogue signal, resolved to numeral dtc signal by entire car controller and pass to multi_motor control device, multi_motor control device dispatches No. 1 motor, No. 2 motors or other motor entrance work according to the state of level of torque, pedal, thus meets the automobile needs to torque；In like manner automobile brake reclaims, and negative torque command is passed to multi_motor control device, completed the recovery to braking energy by entire car controller.

As it has been described above, this programme is substantially many motors substep enters work, power threshold is expanded, and when automobile is carried out direct driving, can improve efficiency；The automobile that city the most preferably operating mode and highway often travel, by the multi-motor driving scheme dynamic property of this power variable, economy, property easy to maintenance can be more preferably.

The technical program has given full play to motorized, intelligentized advantage, provides new drive arrangement scheme for Automobile drive assembly, it is provided that practicable technical support, is an efficient low-consume, economic and practical technical strategies.

What deserves to be explained is that a kind of multi-motor driving assembly, driving structural principle etc. are only illustrated by this programme, exemplary plot also has good multi-part do not illustrate and write, so the content of above-mentioned real row is only for reference.

Additionally, the relevant power electronics of this case and Network Control Segment, it controls detailed strategy and method and explanation of controller soft hardware, carefully will state in other patent, and this case is no longer discussed in detail.

Although this utility model being described in detail already in connection with accompanying drawing above, but those skilled in the art it is to be appreciated that described above is only that the signal to detailed description of the invention illustrates, scope of the present utility model is not restricted to the railway car manufacture field that above-mentioned particular implementation case is mentioned.Certainly, this utility model is not restrictively applied to electric automobile field, it is possible to be applied to other similar driving project.

Claims

1. many motor parallels drive system of electric automobile, is characterized in that: native system includes thin Type motor, splined shaft, spline housing, multi_motor control device；In the middle of thin electric motor as above Being splined hole, multiple thin electric motors are cascaded by splined shaft, and power is passed to by each motor Splined shaft, passes to spline housing by splined shaft by power, is outputed power by spline housing；Drive By spline housing, power is passed to vehicle drive axle again during motor-car；Use automobile bus control method, Entire car controller, accelerator pedal, brake pedal are in communication with each other with multi_motor control device, according to car To power need change signal is passed to multi_motor control device, tune is responsible for by multi_motor control device The size spending each motor substep entrance work, i.e. power of vehicle demand determines motor entrance work Quantity.