Distributed driving system configuration of electric transmission vehicle

Abstract

The utility model provides a distributed driving system structure of an electric transmission vehicle. The distributed driving system structure comprises a driving motor, a hub reduction gear, a brake disc, brake calipers, a pressure regulator, a master cylinder, a brake controller, a filter and a connecting flange plate. The output end of a driving motor of the driving system, a hub reduction gear and a brake are coaxially arranged. A double-motor double-side independent driving mode is adopted, motors with different power densities are reasonably selected, and wheel reducers are matched, so that the driving system works in a reasonable working range. The power output part, the brake disc and the brake calipers of the driving system are arranged outside the vehicle body, the wire outlet end of the driving motor, the water inlet and the water outlet and the like are arranged in the vehicle, the environmental adaptability of the braking device and the driving motor can be improved, and the characteristics of compact structure and small size are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric drive vehicle distributed drive system technical field, concretely relates to a kind of electric drive vehicle distributed drive system configuration. BACKGROUND

[0002] Electric drive technology refers to the power transmission of engine-generator set and battery power supply, drive motor drive system completes vehicle driving, realizes the technology involved in each function in vehicle tactical maneuverability process.Compared with traditional mechanical drive system, electric drive system has many superiorities.At present, our country unmanned special vehicle is still in rapid development stage, drive system is greatly different from traditional combat vehicle, as the key sub-system of vehicle power output and realization vehicle brake, it is composed of numerous components, complex structure, system configuration is not yet mature.Therefore, it is necessary to propose a reasonable layout and structure design, not only can meet the requirements of vehicle lightweight, integration, also can improve the reliability of drive system, reduce the occupation of vehicle space. UTILITY MODEL CONTENT

[0003] (1) technical problem to be solved

[0004] The utility model proposes a kind of electric drive vehicle distributed drive system configuration, to solve how to realize the reasonable layout of drive motor, wheel edge speed reducer and brake by integrated structure design, improve the utilization rate of vehicle internal space, ensure the functionality, environmental adaptability of each component technical problem.

[0005] (2) technical scheme

[0006] In order to solve the above technical problem, the utility model proposes a kind of electric drive vehicle distributed drive system configuration, which comprises drive motor, wheel edge speed reducer, brake disc, brake caliper, pressure regulator, master cylinder, brake controller, filter and connecting flange plate;Wherein,

[0007] Drive motor is fastened and connected with vehicle body by flange plate;

[0008] Wheel edge speed reducer is connected with driving wheel by connecting flange plate;Wheel edge speed reducer is composed of one-stage planetary reduction mechanism, is connected with the gear ring fixed on drive motor by sun gear shaft and planetary gear engagement;Drive motor is directly connected with the input end of wheel edge speed reducer, and one-stage planetary gear reduction is realized to reduce speed and increase torque;Torque transmission is output to wheel edge speed reducer by sun gear shaft by drive motor, and the transmission ratio of wheel edge speed reducer is invariable, can increase the torque of driving wheel transmitted by drive motor with fixed transmission ratio, and correspondingly reduce the rotating speed of driving wheel;Drive motor converts electric energy into mechanical energy and transmits to driving wheel by wheel edge speed reducer, realizes the stable output of torque and rotating speed from drive motor to driving wheel;

[0009] The brake disc is fixed on the shell of the wheel-side reducer, and the brake caliper is fixed on the shell of the driving motor through bolts, so that the driving and parking brake functions of the vehicle are realized through the brake disc and the brake caliper; the brake disc and the wheel-side reducer are coaxially arranged, and power is transmitted to the driving wheel through the primary planetary gear;

[0010] The pressure regulator, the master cylinder, the brake controller and the filter are all mounted on the vehicle body; the master cylinder and the pressure regulator are connected with the brake caliper and the filter through hydraulic pipelines; the pressure regulator is integrated with an accumulator and an electromagnetic valve, which are used for providing power for the brake caliper to realize the driving and parking brake functions; the brake controller controls the start and stop of the master cylinder to charge the accumulator by monitoring the pressure value of the accumulator in real time; when the oil pressure of the accumulator rises to the upper limit pressure, the master cylinder is closed through the electromagnetic valve; when the oil pressure of the accumulator drops to the lower limit pressure, the master cylinder is immediately started to charge the accumulator, so as to provide hydraulic power for the brake caliper to realize the driving and parking brake functions.

[0011] Further, the driving motor 1 is a permanent magnet synchronous motor with a rated power of 16kw and a peak power of 30kw.

[0012] Further, the transmission ratio of the wheel-side reducer is 8.21.

[0013] Further, the torque and the rotating speed output by the driving motor are transformed and matched according to the real-time vehicle speed and the whole vehicle weight.

[0014] Further, the driving motor and the brake controller receive the whole vehicle instruction to realize the vehicle control of the driver together.

[0015] (Three) beneficial effects

[0016] The utility model provides a kind of electric drive vehicle distributed drive system configuration, including driving motor, wheel-side reducer, brake disc, brake caliper, pressure regulator, master cylinder, brake controller, filter and connecting flange plate.The utility model driving system driving motor output end is coaxially arranged with wheel-side reducer, brake.The form of double motor double side independent drive is adopted, and by reasonably selecting different power density motor and matching wheel-side reducer, the driving system works in reasonable working interval.Power output part of the driving system, brake disc and brake caliper are arranged outside vehicle body, and driving motor outlet end and water inlet and outlet are arranged in vehicle, can improve the environmental adaptability of brake device and driving motor, and have the characteristics of compact structure and small size. DRAWINGS

[0017] Figure 1 It is the driving system working principle diagram of the utility model;

[0018] Figure 2The utility model discloses electric drive vehicle distributed drive system right upper visual angle layout figure for the utility model discloses electric drive vehicle distributed drive system left upper visual angle layout figure.

[0019] Figure 3 The utility model discloses electric drive vehicle distributed drive system left upper visual angle layout figure for the utility model discloses electric drive vehicle distributed drive system right upper visual angle in-car layout figure.

[0020] Figure 4 The utility model discloses electric drive vehicle distributed drive system right upper visual angle in-car layout figure for the utility model discloses electric drive vehicle distributed drive system left upper visual angle in-car layout.

[0021] Figure 5 The utility model discloses electric drive vehicle distributed drive system left upper visual angle in-car layout for the utility model discloses electric drive vehicle distributed drive system left upper visual angle layout figure. DETAILED DESCRIPTION

[0022] In order to make the purpose, content and advantage of the utility model more clear, below combining with the drawing and example, the specific embodiment of the utility model is described in further detail.

[0023] The embodiment proposes a kind of electric drive vehicle distributed drive system configuration, main function is to convert mechanical energy by controller and drive motor into electric energy, drive vehicle travel, under the control of driving operation, the electric energy of engine-generator system and vehicle-mounted energy storage device is converted into the kinetic energy of wheel and drives vehicle, and when vehicle brake, the kinetic energy of vehicle is regenerated as electric energy and is fed back to vehicle-mounted energy storage device to realize the regenerative braking of vehicle.

[0024] The drive system of the utility model adopts the form of double motor double side independent drive, and the working principle of drive system is as shown in Figure 1 , overall structure is as shown in Figure 2 And 3 , mainly including drive motor 1, wheel edge speed reducer 2, brake disc 3, brake caliper 4, pressure regulator 5, total pump 6, brake controller 7, filter 8 and connecting flange plate 9.

[0025] Drive motor 1 is fastened and connected with vehicle body by flange plate, according to the total vehicle combat full weight and the highest speed index requirement, drive motor 1 selects the permanent magnet synchronous motor with rated power 16kw, peak power 30kw, can satisfy maximum climbing degree and highest speed requirement.

[0026] The wheel side reducer 2 is connected with the driving wheel through the connecting flange 9. The wheel side reducer 2 is composed of a first-stage planetary reduction mechanism, the transmission ratio is 8.21, and is connected with the gear ring fixed on the driving motor 1 through the meshing of the sun gear shaft and the planetary gear. The driving motor 1 is directly connected with the input end of the wheel side reducer 2, and the speed reduction and torque increase are realized through the first-stage planetary gear reduction. The torque is transmitted from the driving motor 1 to the wheel side reducer 2 through the sun gear shaft, the transmission ratio of the wheel side reducer 2 is unchanged, the torque transmitted to the driving wheel by the driving motor 1 can be increased at a fixed transmission ratio, and the rotating speed of the driving wheel is correspondingly reduced. The driving motor 1 converts electric energy into mechanical energy and transmits the mechanical energy to the driving wheel through the wheel side reducer 2, so that the torque and rotating speed of the driving motor 1 to the driving wheel are stably output. The torque and rotating speed output by the driving motor 1 can be changed and matched according to the real-time vehicle speed and the whole vehicle weight.

[0027] The brake disc 3 is fixed on the housing of the wheel side reducer 2, and the brake caliper 4 is fixed on the housing of the driving motor 1 through bolts, and the driving and parking brake functions of the vehicle can be realized through the brake disc 3 and the brake caliper 4. The brake disc 3 and the wheel side reducer 2 are coaxially arranged, the power is transmitted to the driving wheel through the first-stage planetary gear, compared with the horizontal shaft horizontal reducer for transmitting torque, the structure is more compact, more space can be provided in the vehicle body for arranging equipment, and the space utilization rate is improved.

[0028] The pressure regulator 5, the master pump 6, the brake controller 7 and the filter 8 are all installed on the vehicle body. Among them, the master pump 6 and the pressure regulator 5 are connected with the brake caliper 4 and the filter 8 through the hydraulic pipeline. The pressure regulator 5 is integrated with an accumulator and various electromagnetic valves, which is used for providing power for the brake caliper 4 to realize the driving and parking brake. The brake controller 7 controls the start and stop of the master pump 6 to charge the accumulator by monitoring the pressure value of the accumulator in real time. When the oil pressure of the accumulator rises to the upper limit pressure, the master pump 6 is closed through the electromagnetic valve, and when the oil pressure of the accumulator drops to the lower limit pressure, the master pump 6 is started immediately to charge the accumulator, so as to provide hydraulic power for the brake caliper 4 to realize the driving and parking brake. The driving motor 1 and the brake controller 7 receive the whole vehicle instruction to realize the vehicle control of the driver together.

[0029] The driving system structure of the utility model is reasonable in layout, the brake of the driving system is coaxially arranged with the driving motor, and the driving motor is coaxially arranged with the wheel side reducer. The driving motor and the wheel side reducer can be selected according to the whole vehicle fighting full weight, the maximum parking slope angle and the highest vehicle speed, and at present, the index requirements of 1 ton to 2 ton electric drive vehicles can be covered. The driving system only has the power output part located outside the vehicle body, so that the environmental adaptability of the driving motor can be improved. The driving motor, the wheel side reducer and the brake can realize overall hoisting, so that the light weight and integration requirements of the vehicle can be met, the reliability of the driving system can be improved, and the occupied space in the vehicle can be reduced.

[0030] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and deformations can be made, and these improvements and deformations should also be considered as the protection scope of the present application.

Claims

1. An electrically driven vehicle distributed drive system configuration, characterized by, The electric transmission vehicle distributed drive system configuration comprises a drive motor, a wheel edge reducer, a brake disc, a brake caliper, a pressure regulator, a master pump, a brake controller, a filter and a connecting flange plate, wherein The drive motor is fastened and connected with the vehicle body through the flange plate; The wheel edge reducer is connected with the driving wheel through the connecting flange plate; the wheel edge reducer is composed of a one-stage planetary reduction mechanism, is connected with the gear ring fixed on the drive motor through the sun gear shaft and the planetary gear, the drive motor is directly connected with the input end of the wheel edge reducer, and the one-stage planetary gear reduction is used to realize speed reduction and torque increase; the torque is output from the drive motor to the wheel edge reducer through the sun gear shaft, the transmission ratio of the wheel edge reducer is unchanged, the torque of the driving motor transmitted to the driving wheel can be increased at a fixed transmission ratio, and the rotating speed of the driving wheel is correspondingly reduced; the drive motor converts electric energy into mechanical energy and transmits the mechanical energy to the driving wheel through the wheel edge reducer, so that the torque and rotating speed of the drive motor to the driving wheel are stably output; The brake disc is fixed on the housing of the wheel edge reducer, the brake caliper is fixed on the housing of the drive motor through bolts, and the driving and parking brake functions of the vehicle are realized through the brake disc and the brake caliper; the brake disc and the wheel edge reducer are coaxially arranged, and power is transmitted to the driving wheel through the one-stage planetary gear; The pressure regulator, the master pump, the brake controller and the filter are installed on the vehicle body; wherein the master pump and the pressure regulator are connected with the brake caliper and the filter through the hydraulic pipeline; the pressure regulator is integrated with an accumulator and an electromagnetic valve, which is used to provide power for the brake caliper and realize the driving and parking brake; the brake controller controls the start and stop of the master pump to charge the accumulator by monitoring the pressure value of the accumulator in real time; when the oil pressure of the accumulator rises to the upper limit pressure, the master pump is closed through the electromagnetic valve, and when the oil pressure of the accumulator drops to the lower limit pressure, the master pump is started immediately to charge the accumulator, so as to provide hydraulic power for the brake caliper and realize the driving and parking brake.

2. The electrically driven vehicle distributed drive system configuration of claim 1, wherein, The drive motor 1 selects a permanent magnet synchronous motor with a rated power of 16kw and a peak power of 30kw.

3. The electrically driven vehicle distributed drive system configuration of claim 1, wherein, The transmission ratio of the wheel edge reducer is 8.

21.

4. The electrically driven vehicle distributed drive system configuration of claim 1, wherein, The torque and rotating speed output by the drive motor are transformed and matched according to the real-time vehicle speed and the whole vehicle weight.

5. The electrically driven vehicle distributed drive system configuration of claim 1, wherein, The drive motor and the brake controller receive the whole vehicle instruction and jointly realize the vehicle control of the driver.

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