CN218085093U

CN218085093U - Pure electric extended range type new energy automobile power system

Info

Publication number: CN218085093U
Application number: CN202222337875.3U
Authority: CN
Inventors: 王亚军; 王伟; 张宗阳; 张志铭
Original assignee: Hangzhou Lushi Automobile Technology Co ltd
Current assignee: Hangzhou Lushi Automobile Technology Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-12-20
Anticipated expiration: 2032-09-02

Abstract

The utility model provides a pure electric new energy automobile driving system that increases form, includes back driving motor, back speed increaser, back reduction gear, back drive semi-axis, preceding driving motor, preceding speed increaser, preceding reduction gear, preceding drive semi-axis, tire assembly, integral type battery package, battery management system BMS, vehicle control unit VCU, dc-to-ac converter and three generator, three generator are preceding generator, left back generator and right back generator respectively, preceding generator sets up on preceding speed increaser and is connected with preceding speed increaser, and left back generator and right back generator set up respectively in the left and right sides of back speed increaser and both are connected with back speed increaser, and the generator passes through the dc-to-ac converter and is connected with vehicle control unit VCU, and vehicle control unit VCU is connected with back driving motor and front driving motor respectively. The utility model provides a pure electric increases form new energy automobile driving system under the condition that does not increase the group battery, increases the continuation of the journey mileage of car, for the convenience that the user improved the vehicle and used.

Description

Pure electric extended range type new energy automobile power system

Technical Field

The utility model belongs to the technical field of new energy automobile technique and specifically relates to a pure electric increases form new energy automobile driving system.

Background

At present, the environmental protection emission requirements of automobiles are stricter, and the cost of the automobiles is increased undoubtedly due to the fluctuation of external petroleum price. Green and environment-friendly, and low-carbon travel. And the cost of the vehicle is low, and the new energy vehicle is favored by the vehicle group. The automobile industry is also changing, the new energy automobile industry is developing and exploring in the field of new energy automobiles, the new energy automobile industry is developing to a certain height under the support of the great force of the country and the support of the government, and after continuous efforts of several years, the new energy automobile is developing rapidly, and the figure of the new energy automobile can be seen everywhere in streets and lanes. The new energy automobile is vigorously developed and popularized, the vehicle using cost of vehicle users is reduced, the vehicle manufacturing cost is reduced, certain advantages are achieved compared with the traditional fuel oil vehicle, the aim of fighting against troops on energy conservation and emission reduction is achieved, and the new energy automobile is low-carbon, environment-friendly, energy-saving and emission-reduction and is the idea of the new energy automobile.

The existing pure electric vehicle has the following defects: the endurance is short, the running is not suitable for long distance, and the charging is inconvenient; the slow charging time is long, and the quick charging needs to find the charging pile with the quick charging.

Disclosure of Invention

Under in order to solve current new energy automobile pure electric condition and go, the problem that exists in the aspect of the continuation of the journey mileage, the utility model provides a pure electric increases form new energy automobile power system under the condition that does not increase the group battery, increases the continuation of the journey mileage of car to realize the long continuation of the journey the same as traditional fuel oil car, solved well, long-distance long duration, break away from continuation of the journey anxiety, for the convenience that the user improved the vehicle and used.

The utility model provides a technical scheme that its technical problem adopted is:

a pure electric extended range type new energy automobile power system comprises a rear driving motor, a rear gearbox, a rear driving half shaft, a front driving motor, a front gearbox, a front driving half shaft, a wheel assembly, an integrated battery pack, a battery management system BMS, a vehicle control unit VCU, an inverter and three generators for transmitting electric quantity to the integrated battery pack, wherein the rear driving motor is installed on a shell of the rear gearbox, a power output end of the rear driving motor is connected with the rear driving half shaft through a rear speed reducer in the rear gearbox, the front driving motor is installed on the shell of the front gearbox, the power output end of the front driving motor is connected with the front driving half shaft through a front speed reducer in the front gearbox, and the front driving half shaft and the rear driving half shaft are respectively connected with corresponding wheel assemblies;

the three generators are respectively a front generator, a left rear generator and a right rear generator, the front generator is arranged on a shell of a front gearbox and is connected with a front speed increaser, the left rear generator and the right rear generator are arranged on a shell of a rear gearbox in a bilateral symmetry manner and are both connected with the rear speed increaser in the rear gearbox, the front generator, the left rear generator and the right rear generator are respectively connected with an inverter through generator electric energy output lines, the inverter is connected with a vehicle control unit VCU, the vehicle control unit VCU and the inverter are both connected with an integrated battery pack through a battery management system BMS, and the vehicle control unit VCU is also respectively connected with a rear driving motor and a front driving motor through driving motor power output lines;

the integrated battery pack is arranged in the center of the chassis and comprises a battery pack shell, a battery pack A and a battery pack B, wherein the battery pack A, the battery pack B and the battery management system BMS are all arranged in the battery pack shell, the two battery packs are respectively connected with the battery management system BMS, and an external charging interface is connected with a VCU (vehicle control unit);

in the running process of the automobile, electric energy generated by the generator is converted into voltage required by automobile charging through the inverter, the battery management system BMS monitors the two battery packs in real time, feeds the residual electric quantity and mileage of the battery packs back to the vehicle control unit VCU, supplements the electric quantity into the battery pack A or the battery pack B with lower electric quantity after being judged by the vehicle control unit VCU, and simultaneously switches the battery pack with full electric quantity to supply power.

Further, the maximum power generation amount output by the three generators is 36V.

The beneficial effects of the utility model are that:

1. compared with a pure electric vehicle, the improvement of the endurance can meet the use requirement of medium and long distance like a fuel vehicle, improve the convenience for vehicle users, avoid frequent charging and solve the problem of endurance anxiety;

2. the design is reasonable: the utility model has the same operation and operation as the existing pure electric vehicle, simple operation, no too many complicated and fussy operation processes, and the user can drive by learning to drive the vehicle foundation; the layout among the components is reasonable, the driving motor and the corresponding speed reducer, speed increaser and generator are designed in an integrated mode to form a running power generation system, the VCU of the vehicle controller and the BMS battery pack of the battery management system form a system for controlling, distributing and outputting electric energy, the space of the whole vehicle is reasonably utilized, the vehicle drives the generator to generate power through the speed increaser on the premise of pure electric endurance, the charging in the running process of the vehicle is finished, the two battery packs alternately continue to run and supplement energy, and the endurance is greatly improved;

3. the manufacturing cost is low: compared with a pure electric vehicle, the layout difference is small, used parts are optimized and designed reasonably based on the existing parts, and the manufacturing cost of the whole vehicle is greatly reduced by subsequent mass popularization;

4. the vehicle adaptability is strong: it can be used in plateau, high-cold and high-temp areas, and can be used in various road conditions.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the integrated battery pack.

Fig. 3 is a top view of fig. 2.

Fig. 4 is a schematic diagram of the integrated battery pack weight distribution.

Fig. 5 is a schematic block diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, a pure electric extended range type new energy automobile power system includes a rear driving motor 15, a rear gearbox, a rear driving half shaft 3, a front driving motor 9, a front gearbox, a front driving half shaft 8, a wheel assembly 4, an integrated battery pack 5, a battery management system BMS22, a vehicle control unit VCU6, an inverter 7, and three generators for transmitting electric energy to the integrated battery pack 5, wherein the rear driving motor 15 is mounted on a housing of the rear gearbox, and a power output end thereof is connected with the rear driving half shaft 3 through a rear reducer 2 in the rear gearbox, the front driving motor 9 is mounted on the housing of the front gearbox, and a power output end thereof is connected with the front driving half shaft through a front reducer 10 in the front gearbox, and the front driving half shaft 8 and the rear driving half shaft 3 are respectively connected with the corresponding wheel assembly 4;

the three generators are respectively a front generator 12, a left rear generator 13 and a right rear generator 14, the front generator 12 is arranged on the shell of a front gearbox and is connected with a front speed increaser 11, the left rear generator 13 and the right rear generator 14 are symmetrically arranged on the left and right of the shell of a rear gearbox and are both connected with a rear speed increaser 1 in the rear gearbox, the front generator 12, the left rear generator 13 and the right rear generator 14 are respectively connected with an inverter 7 through generator electric energy output lines, the inverter 7 is connected with a vehicle control unit VCU6, the vehicle control unit VCU6 and the inverter 7 are both connected with an integrated battery pack 5 through a battery management system BMS, and the vehicle control VCU6 is also respectively connected with a rear driving motor 15 and a front driving motor 9 through driving motor power output lines;

the integrated battery pack 5 is arranged at the central position of the chassis and comprises a battery pack shell, an A battery pack 21 and a B battery pack 17, wherein the A battery pack 21, the B battery pack 17 and the battery management system BMS are arranged in the battery pack shell, and the two battery packs are respectively connected with the battery management system BMS; the external charging interface is connected with a VCU6 of the vehicle control unit;

in the running process of the automobile, electric energy generated by the generator is converted into voltage required by automobile charging through the inverter, the battery management system BMS monitors the two battery packs in real time, feeds the remaining electric quantity and mileage of the battery packs back to the VCU of the vehicle control unit, supplements the electric quantity into the A battery pack 21 or the B battery pack 17 with lower electric quantity after being judged by the VCU of the vehicle control unit, and switches the battery pack with full electric quantity to supply power.

As shown in fig. 1 and 2, in which the battery pack case is omitted in fig. 2. The VCU6 is connected with a rear drive motor 15 through a rear drive motor power output line 18, and the VCU6 is connected with a front drive motor 9 through a front drive motor power output line 19; the power output gear of the driving motor is meshed with the gear set of the speed reducer, the speed reducer is meshed with the speed increaser through the gear, the generator is arranged on the shell through the mounting hole on the shell of the speed changer, and the generator is meshed with the gear set in the speed increaser through the gear; the front generator 12 is connected with the inverter 7 through a front generator electric energy output line 20, the left rear generator 13 is connected with the inverter 7 through a left rear generator electric energy output line 16, and the right rear generator 14 is connected with the inverter 7 through a right rear generator electric energy output line 25; the battery management system BMS22 is connected to the a-group pack connection line 23 and the B-group pack connection line 24, respectively, through connection lines 26, thereby being connected to the two battery packs. The A battery pack 21 is connected with the inverter 7 and the vehicle control unit VCU6 through an A battery pack connecting wire 23, the B battery pack 17 is connected with the inverter 7 and the vehicle control unit VCU6 through a B battery pack connecting wire 24, the A battery pack connecting wire 23 and the B battery pack connecting wire 24 are integrated wire harnesses, and connecting wires respectively connected with the inverter 7 and the vehicle control unit VCU6 are contained in the A battery pack connecting wire and the B battery pack connecting wire.

The battery management system BMS22 monitors the state of the battery pack, feeds the state back to the VCU6 of the vehicle control unit in real time, feeds the state back to the VCU6 of the vehicle control unit to make a judgment when the electric quantity endurance mileage of a certain battery pack is lower than 50Km, and switches the full-battery pack to run.

The integrated battery pack 5 is arranged in a central position of the chassis of the vehicle for better weight distribution. The battery pack is not limited by the type, specification and material. Two groups of batteries in the battery package are used alternately, and are used alternately after electric quantity is supplemented, when the vehicle needs external supplementary electric energy, indirect electric energy supplement can be carried out on the vehicle through an external charging interface, and electric quantity balance in the A/B two groups of batteries is balanced. The pure electric vehicle range extending technology solves the problems that the integral battery pack of the pure electric vehicle in the existing market can not supplement electric energy for the vehicle in driving, the cruising ability is insufficient, and the like.

The utility model discloses a working process does:

the generator is arranged on the shell of the gearbox, the driving half shaft is inserted into the speed reducer, and in the running process of the automobile, the power output by the driving motor is transmitted to the driving half shaft through the speed reducer for reducing speed and increasing torque, and meanwhile, the generator is driven by the gear set in the speed reducer;

the electric energy generated by the generator is converted into the voltage required by the charging of the automobile through the inverter 7, the battery management system BMS monitors the two battery packs in real time, the residual electric quantity and mileage of the battery packs are fed back to the VCU6 of the vehicle control unit, the electric quantity is supplemented into the battery pack A21 or the battery pack B17 with lower electric quantity after the judgment of the VCU6 of the vehicle control unit, and the battery packs with full electric quantity are switched to supply power for the running of the automobile and the power consumption of electric equipment in the automobile, wherein the electric equipment in the automobile comprises an air conditioner, light, an entertainment sound and video system, warm air in the automobile, vehicle-mounted electric equipment and the like.

The endurance mileage of the single battery pack is 300Km, and when the endurance mileage of the A battery pack 21 is lower than 50Km, the B battery pack 17 is triggered to start to take over endurance after being judged by the VCU6 of the vehicle control unit. The B battery pack 17 provides endurance for the vehicle, and meanwhile, the three generators generate electricity and supplement electric quantity for the A battery pack 21 after inversion and rectification by the inverter 7; when the cruising mileage of the B battery pack 17 is lower than 50Km, the A battery pack 21 is triggered to start after the determination of the VCU6 of the vehicle control unit, the driving mileage can be greatly improved, the battery packs can be used alternately, the service cycle can be prolonged, and the use cost of vehicles in later periods is reduced.

The utility model discloses the electricelectric increases journey technique that adopts for electricelectric automobile moves the limit and charges, improves electricelectric automobile's continuation of the journey mileage, realizes green and increases journey zero release, zero pollution, the cost is reduced, can compensate in many ways that current electricelectric automobile exists that the continuation of the journey is short, need frequently charge, continuation of the journey anxiety, the continuation of the journey ability shortens in winter, the consumption scheduling problem of air conditioner vehicle electric energy is driven in summer; and simultaneously, the utility model discloses there is the technological popularization of fine universality, great aspect, and greatly reduced manufacturing cost is satisfied with the later stage in the later stage, most with the car family demand.

Claims

1. The utility model provides a pure electric new forms of energy automobile driving system that increases which characterized in that: the electric vehicle comprises a rear driving motor, a rear gearbox, a rear driving half shaft, a front driving motor, a front gearbox, a front driving half shaft, a wheel assembly, an integrated battery pack, a battery management system BMS, a vehicle control unit VCU, an inverter and three generators for transmitting electric quantity to the integrated battery pack, wherein the rear driving motor is arranged on the shell of the rear gearbox, the power output end of the rear driving motor is connected with the rear driving half shaft through a rear speed reducer in the rear gearbox, the front driving motor is arranged on the shell of the front gearbox, the power output end of the front driving motor is connected with the front driving half shaft through a front speed reducer in the front gearbox, and the front driving half shaft and the rear driving half shaft are respectively connected with the corresponding wheel assemblies;

in the running process of the automobile, electric energy generated by the generator is converted into voltage required by automobile charging through the inverter, the battery management system BMS monitors the two battery packs in real time, feeds the remaining electric quantity and mileage of the battery packs back to the VCU of the vehicle control unit, supplements the electric quantity into the battery pack A or the battery pack B with lower electric quantity after being judged by the VCU of the vehicle control unit, and switches the battery pack with full electric quantity to supply power.

2. The pure electric extended-range new energy automobile power system of claim 1, characterized in that: the maximum power generation amount output by the three generators is 36V.