CN216231640U - All-in-one electric drive assembly and electric automobile comprising same - Google Patents
All-in-one electric drive assembly and electric automobile comprising same Download PDFInfo
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- CN216231640U CN216231640U CN202120042640.4U CN202120042640U CN216231640U CN 216231640 U CN216231640 U CN 216231640U CN 202120042640 U CN202120042640 U CN 202120042640U CN 216231640 U CN216231640 U CN 216231640U
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Abstract
The utility model provides an all-in-one electric drive assembly and an electric automobile comprising the same, wherein the all-in-one electric drive assembly comprises a main drive motor, a gearbox, a main drive motor controller, a power distribution unit, an oil pump controller, an air pump controller, a low-voltage battery charger, a whole vehicle controller and a gearbox controller; the main drive motor controller, the main drive motor and the gearbox are sequentially connected into a whole along the axial direction of the main drive motor; each control part is arranged on the top of the main drive motor, and the power distribution unit is positioned right above the main drive motor controller; the control components are electrically connected through signal cables, power cables or copper bars; the top of the main driving motor is also provided with a plurality of connectors for electrical connection. The utility model can improve the integration level and the safety of the electric control product, reduce the cost of the electric control part of the new energy automobile and optimize the structural space of the whole automobile.
Description
Technical Field
The utility model relates to a new energy automobile's power drive technical field especially relates to an all-in-one electric drive assembly and contain its electric automobile.
Background
With the development of the new energy automobile market, the functions of the new energy automobile are more and more perfect, and more electric control products for realizing the single functions are provided. Meanwhile, various problems are caused, such as high cost, repeated protection design at multiple positions, complex structure, large layout space, various wire harness networks, poor electrical performance and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve or at least alleviate at least one of the above technical problems, the present disclosure provides an all-in-one electric drive assembly and an electric vehicle including the same, so as to improve the integration level and the safety of an electric control product, reduce the cost of an electric control part of a new energy vehicle, and optimize the structural space of the whole vehicle.
According to one aspect of the present disclosure, an all-in-one electric drive assembly includes:
the system comprises a main drive motor, a gearbox, a main drive motor controller, a power distribution unit, an oil pump controller, an air pump controller, a low-voltage battery charger, a vehicle control unit and a gearbox controller;
the main drive motor controller, the main drive motor and the gearbox are sequentially connected into a whole along the axial direction of the main drive motor;
the power distribution unit, the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit and the gearbox controller are all arranged at the top of the main drive motor, and the power distribution unit is positioned right above the main drive motor controller;
the main drive motor controller, the power supply distribution unit, the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit and the gearbox controller are electrically connected through signal cables, power cables or copper bars;
the top of the main driving motor is also provided with a plurality of connectors for electrical connection.
According to at least one embodiment of the present disclosure, a box body is installed on the top of the main drive motor, and part of the box body is located right above the main drive motor controller;
the power distribution unit, the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit and the gearbox controller are installed in the box body.
According to at least one embodiment of the present disclosure, the power distribution unit is installed at a position right above the main drive motor controller in the box, and the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit, and the transmission case controller are sequentially installed in the box along a direction away from the main drive motor controller.
According to at least one embodiment of the present disclosure, the main drive motor controller is electrically connected to the components in the box body through a signal cable and high-voltage positive and negative bus copper bars.
According to at least one embodiment of the present disclosure, the main drive motor controller is electrically connected to the main drive motor through a signal cable and a high voltage power cable.
According to at least one embodiment of the present disclosure, an XY shift mechanism is mounted on the transmission, and the XY shift mechanism includes a shift motor, a shift selection motor, a shift position sensor, and a shift selection position sensor; the gear shifting motor and the gear selecting motor are respectively provided with a motor interface for power supply connection;
and the gearbox is provided with a vehicle speed sensor and a pressure switch.
According to at least one embodiment of the present disclosure, the connector is provided on a side surface of the case; the connector comprises a high-voltage power supply interface, a high-voltage power distribution output interface, an oil-gas pump power supply output interface, a low-voltage control interface and a low-voltage direct-current output interface;
the high-voltage power supply interface is used for being connected to a high-voltage battery pack of the whole vehicle through a high-voltage wire harness; the high-voltage distribution output interface is used for being respectively connected to the PTC heater and the whole vehicle air conditioner through high-voltage wiring harnesses; the oil-gas pump power supply output interface is used for being respectively connected to the air pump and the oil pump through high-voltage wiring harnesses; the low-voltage control interface is used for being respectively connected to the gear shifting position sensor, the gear selecting position sensor, the motor interface, the vehicle speed sensor, the pressure switch and other auxiliary electrical appliance units assembled on the electric automobile through low-voltage control wiring harnesses; the low-voltage direct current output interface is used for being connected to a low-voltage battery pack through a low-voltage wire harness to charge a low-voltage battery.
According to at least one embodiment of this disclosure, the high-voltage power interface includes a positive negative power interface and a reserve charging function interface that unify more.
According to at least one embodiment of the present disclosure, cooling water pipelines are disposed in the box body, the main drive motor controller and the main drive motor;
the water inlet of the cooling water pipeline is arranged on the side surface of the box body; the cooling water pipeline sequentially passes through the box body, the main drive motor controller and the main drive motor and is arranged in a coiled mode, and a water outlet of the cooling water pipeline is arranged on the main drive motor.
According to at least one embodiment of the present disclosure, a front end cover of the main drive motor is fixedly connected with a flange plate of the transmission case; and the rear end cover of the main drive motor is fixedly connected with the main drive motor controller.
According to another aspect of the present disclosure, an electric vehicle includes a battery pack, a BMS, the all-in-one electric drive assembly of any of the foregoing;
the all-in-one electric drive assembly is fixedly connected with a vehicle body, and the top of the main drive motor faces upwards; the battery pack, the BMS and the all-in-one electric drive assembly are electrically connected.
The all-in-one electric drive assembly is characterized in that a power distribution unit, an oil pump controller, an air pump controller, a low-voltage battery charger, a vehicle control unit and a gearbox controller are arranged on the top of a main drive motor in a centralized mode, and the power distribution unit is located right above the main drive motor controller. Each functional electric control component is electrically connected through a signal cable, a power cable or a copper bar, and the top of the main drive motor is also provided with a plurality of connectors for electrically connecting with external equipment. The integration level and the safety of the electric control product are improved, the cost of an electric control part of the new energy automobile is reduced, and the structural space of the whole automobile is optimized. The power drive can be provided for new energy automobiles such as pure electric automobiles and hybrid automobiles.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is a front view of an exemplary configuration of an all-in-one electric drive assembly of the present disclosure.
FIG. 2 is a top view of an exemplary configuration of an all-in-one electric drive assembly of the present disclosure.
FIG. 3 is a schematic diagram of an exemplary electrical connection of the all-in-one electric drive assembly of the present disclosure.
Description of reference numerals:
1-a main drive Motor Controller (MCU); 2-Power Distribution Unit (PDU); 3-oil pump controller (DC-AC); 4-air pump controller (DC-AC); 5-VCU & TCU module; 6-low voltage battery charger (DC-DC); 7-a main drive motor; an 8-XY shift mechanism; 9-a gearbox; 10-a transmission flange plate; 11-a gearbox output shaft; 12-a nameplate; 13-a gearbox flange; 14-a front end cap; 15-rear end cap; 16-a cover plate; 17-high voltage power supply interface; 18-high voltage distribution output interface; 19-oil gas pump power supply output interface; 20-a low voltage control interface; 21-low voltage dc output interface; 22-shift position sensor; 23-gear selection position sensor; 24-a motor interface; 25-vehicle speed sensor; 26-pressure switch.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to solve the problems of the existing new energy automobile, the integration of electric control products is trending. Based on this, this disclosure proposes to integrate a plurality of single-function electric control products with the electric drive assembly to form an all-in-one electric drive assembly. Exemplary embodiments of various implementations are described below.
In accordance with one aspect of the present disclosure, reference is made to a front view of an exemplary structure of the all-in-one electric drive assembly shown in FIG. 1, and a top view of an exemplary structure of the all-in-one electric drive assembly shown in FIG. 2. An all-in-one electric drive assembly comprises a main drive motor 7, a gearbox 9, a main drive motor Controller 1(MCU, Micro Controller Unit), a Power Distribution Unit 2(PDU, Power Distribution Unit), an oil pump Controller 3, an air pump Controller 4, a low-voltage battery charger 6, a Vehicle Control Unit (VCU) and a gearbox Controller (TCU, Transmission Control Unit). The oil pump controller 3 and the air pump controller 4 each employ a direct current-alternating current converter (DC-AC), and the low-voltage battery charger 6 employs a direct current-direct current converter (DC-DC). Alternatively, the vehicle control unit and the transmission controller may be formed as a modular unit, for example, forming a VCU & TCU module 5, for ease of installation and maintenance.
The vehicle control unit is a core control component of the whole electric vehicle and is equivalent to the brain of the vehicle. The automobile brake system collects signals of an accelerator pedal, signals of a brake pedal and other parts, and controls the action of each part controller on the lower layer after corresponding judgment is made, so as to drive the automobile to normally run.
The main driving motor is one of three large core parts of a pure electric vehicle and is a main actuating mechanism for driving the vehicle. A permanent magnet motor is generally used, and the permanent magnet motor is an electromagnetic device for converting or transmitting electric energy and mechanical energy according to an electromagnetic induction law.
The main drive motor controller 1 is a control unit that controls the main drive motor to drive the entire vehicle to run, and is a Direct Current (DC) -Alternating Current (AC) power conversion device (equipment) that can adjust the rotation speed, adjust the torque, and change the frequency.
The air pump controller 4 is used for controlling an air pump motor, so as to provide air sources for a whole vehicle air braking system, a pneumatic door control system, an air suspension system and other auxiliary air using systems.
The pump controller 3 is used to control the pump motor so that fuel is sucked out of the fuel tank, pressurized and delivered to the fuel supply line. The fuel pressure regulator is matched with the fuel pressure regulator to establish certain fuel pressure, so that continuous fuel is supplied to the fuel injection nozzle, and the fuel with specified pressure and flow is provided for a fuel system.
The low-voltage battery charger 6 converts the high-voltage (DC300-750V) input on the vehicle into the control voltage (DC9-36V) with stable output, and provides working power supply for each low-voltage control part of the whole vehicle.
The power distribution unit 2(PDU) manages the whole vehicle high-voltage distribution, realizes respective control of each output, monitors the high-voltage connection and insulation state in real time, and has overcurrent, overvoltage and overtemperature protection functions for high-voltage safety.
The gear box 9 is composed of a speed change transmission mechanism and a speed change control mechanism. The surface of the gear box 9 is provided with a nameplate 12. The gearbox 9 is internally provided with a plurality of groups of gear pairs with different transmission ratios for output and input rotation ratios. The main function of the variable speed transmission mechanism is to change the values and directions of torque and rotating speed; the main function of the speed change control mechanism is to control the speed change transmission mechanism to realize the change of the transmission ratio of the speed changer, namely to realize the gear shift so as to achieve the speed change and torque change.
The gearbox controller is a component for realizing automatic speed change control, so that driving is simpler, and real-time vehicle condition information of the whole vehicle, such as vehicle speed fault records, travel reports and the like, can be provided.
The VCU control PDU delivers high and low voltage power for each of the electrical controls. The MCU, the oil pump controller 3, the air pump controller 4, the low-voltage battery charger 6 and the TCU are controlled to work according to the control logic of the whole vehicle, and feedback signals of the electric control devices are collected, analyzed and diagnosed. The MCU controls the work of the main drive motor, converts electric energy into kinetic energy, transmits the kinetic energy to the gearbox 9 through the transmission shaft, and the gearbox 9 transmits the kinetic energy to the vehicle body.
The main drive motor controller 1, the main drive motor 7 and the gearbox 9 are sequentially connected into a whole along the axial direction of the main drive motor 7; taking the direction shown in fig. 1 as an example, the axial direction of the main drive motor is the horizontal direction, and the main drive motor controller 1, the main drive motor 7 and the gearbox 9 are arranged from left to right along the horizontal direction. The three parts are connected into a whole by bolt fastening or other fixing modes. The main drive motor controller 1 and the main drive motor 7 are connected and fastened through bolts, the main drive motor 7 and the gearbox 9 are connected and fastened through flanges and bolts, and kinetic energy transmission is carried out through an output shaft of the main drive motor.
Optionally, the connection mode of the main drive motor 7 and the transmission case 9 is that a front end cover 14 of the main drive motor is fixedly connected with a transmission case flange 13 through bolts, and a sealing strip or a sealant can be used for sealing the interface between the two components. The output end of the main drive motor is in transmission connection with the input end of the gearbox 9 through a transmission shaft. The rear end cover 15 of the main drive motor is fixedly connected with the main drive motor controller 1 through bolts and can be sealed by sealing strips or sealant. The main drive motor controller 1 is further provided with a cover plate 16, and the cover plate 16 is in screwed butt joint with the rear end cover 15 of the main drive motor through bolts.
The power distribution unit 2, the oil pump controller 3, the air pump controller 4, the low-voltage battery charger 6, the vehicle control unit and the gearbox controller are all installed at the top of the main drive motor, and the power distribution unit 2 is located right above the main drive motor controller 1. The top of the main drive motor is the position that faces upward when the all-in-one electric drive assembly is in a normal installation state. The single-function controllers of the power distribution unit 2, the oil pump controller 3, the air pump controller 4, the low-voltage battery charger 6, the vehicle control unit and the gearbox controller are arranged on the top of the main drive motor in a centralized way, and dispersed independent components are designed into a whole without redundant components. The assembly has compact structure and the power density is improved by more than 30 percent. The layout space of the integrated system assembly is saved by more than 26%; the appearance is relatively harmonious as a whole. Because the main drive motor controller 1 is located at the rear end of the main drive motor 7, the main drive motor controller 1 and the power distribution unit 2 both need to be connected with a high-voltage line, and the power distribution unit 2 is located right above the main drive motor controller 1 so as to better distribute the phase regions of the high-voltage part and the low-voltage part and improve the electrical reliability.
The main drive motor controller 1, the power distribution unit 2, the oil pump controller 3, the air pump controller 4, the low-voltage battery charger 6, the vehicle control unit and the gearbox controller are electrically connected through signal cables, power cables or copper bars. Preferably, the main drive motor controller 1 is electrically connected with components in the box body through signal cables and high-voltage positive and negative bus copper bars. The main drive motor controller is electrically connected with the main drive motor through a signal cable and a high-voltage power cable. Because the distance between the control components which are arranged in a centralized way is shorter than that when the control components are arranged in a dispersed way in the prior art, most of external long wire harnesses are replaced by internal short copper bars or power cables and short signal cables, and particularly the copper bars are adopted, so that the electromagnetic compatibility of the system is improved; potential safety hazards (such as electric leakage, combustion and the like) caused by aging of external lines are reduced while external wiring is reduced.
The top of the main drive motor 7 is also provided with a plurality of connectors for electrical connection, through which electrical connection can be made with external equipment. The external connectors are convenient to arrange, external electric control is reduced, and direct wire connection of each electric control device is reduced; the maintenance and the installation are convenient, the installation steps are reduced, and the maintenance space is saved.
In one embodiment of the present disclosure, a box is installed on top of the main drive motor 7, and a part of the box is located right above the main drive motor controller 1. And a power distribution unit 2, an oil pump controller 3, an air pump controller 4, a low-voltage battery charger 6, a vehicle control unit and a gearbox controller are arranged in the box body. The box body can be provided with a detachable cover at the top, and the bottom of the box body is tightly connected with the top of the main driving motor 7 through bolts (sealing strips can also be added). Through installing each single function control unit in the box in a concentrated manner, the structure is arranged compactly more easily, and a plurality of electrically controlled independent cavities are changed into a single cavity, so that the system protection control is facilitated, and the safety of the system is improved.
In one embodiment of the present disclosure, a power distribution unit 2 is installed in a position right above a main drive motor controller 1 in a box, and an oil pump controller 3, an air pump controller 4, a low-voltage battery charger 6, a vehicle control unit and a transmission controller are sequentially installed in the box along a direction away from the main drive motor controller 1. Taking the direction in fig. 1 as an example, a power distribution unit 2 is distributed on the left side (corresponding to the position right above the main drive motor controller 1) inside the box body, and then an oil pump controller 3, an air pump controller 4, a low-voltage battery charger 6, a vehicle control unit and a gearbox controller are sequentially distributed on the right side of the power distribution unit 2 from left to right. The arrangement mode facilitates the isolation of high and low voltages; the high voltage distribution is distributed on one side of the main drive motor controller 1 and the low voltage portion is distributed on the other side relatively far away. In addition, the mode of adopting concentrated installation at main drive motor 7 top in the box can also satisfy the slope sensor application demand in the VCU, makes the slope sensor level in the VCU place, can accurate measurement slope position size to provide necessary information for preventing swift current car and starting optimal control.
In one embodiment of the present disclosure, an XY shift mechanism 8 is mounted on the transmission case 9 (preferably on the top of the transmission case), and the XY shift mechanism 8 includes a shift motor, a select motor, a shift position sensor 22, and a select position sensor 23. The gear shifting motor and the gear selecting motor are respectively provided with a motor interface 24 for power supply connection. The corresponding positions on the gear box 9 are respectively provided with a vehicle speed sensor 25 and a pressure switch 26. XY refers to the X-axis and Y-axis directions perpendicular to each other, and is two directions in which the shift finger is operated to move, one direction is a gear selection direction, and the other direction is a gear shift direction. The XY shift mechanism 8 controls the shifting action of the transmission case 9 by a shift finger (or a shift fork). Preferably, the XY shift mechanism 8 is mounted at a shift block window above the transmission case 9. The gear shifting motor and the gear selecting motor adopt direct current motors and are respectively connected with a power supply for supplying power to the motors through a motor interface 24. As shown in fig. 2, two motor interfaces 24 are provided, each provided on the top of the transmission case 9. And receiving a control signal of a gearbox controller to act, and pushing a gear shifting finger to perform gear shifting operation according to gear shifting logic. Meanwhile, the shift position sensor 22 and the gear selection position sensor 23 feed the position of the shift finger back to the transmission controller for judgment. The speed sensor 25 and the pressure switch 26 monitor the rotational speed of the transmission output shaft 11 and the pressure of the lubricating oil in the transmission, respectively.
In one embodiment of the disclosure, a connector is arranged on the side surface of the box body; the connector comprises a high-voltage power supply interface 17, a high-voltage power distribution output interface 18, an oil-gas pump power supply output interface 19, a low-voltage control interface 20 and a low-voltage direct-current output interface 21.
The high-voltage power supply interface 17 is used for being connected to a high-voltage battery pack of the whole vehicle through a high-voltage wiring harness. The high voltage distribution output interface 18 is used for connecting to the PTC heater and the vehicle air conditioner through high voltage wiring harnesses. The oil-gas pump power output interface 19 is used for being respectively connected to the air pump and the oil pump through high-voltage wiring harnesses. The low voltage control interface 20 is used to connect to a shift position sensor 22, a select position sensor 23, a motor interface 24, a vehicle speed sensor 25, and a pressure switch 26, and other auxiliary electrical units mounted on the electric vehicle, respectively, through a low voltage control harness. The low-voltage direct-current output interface 21 is used for being connected to a low-voltage battery pack through a low-voltage wire harness to charge a low-voltage battery. Optionally, the high-voltage power interface 17 includes an all-in-one positive and negative power interface and a standby charging function interface. The electrical connection relationship between the function control components is shown in fig. 3 as a schematic diagram of the electrical connection relationship.
In one embodiment of the present disclosure, cooling water lines are provided in the case, in the main drive motor controller 1, and in the main drive motor 7. The cooling water pipeline in the box body is arranged in a winding mode in the box body and used for cooling each functional controller which is easy to heat, for example, the oil pump controller 3, the air pump controller 4, the low-voltage battery charger 6, the VCU and the TCU are cooled.
The water inlet of the cooling water pipeline is arranged on the side surface of the box body. The cooling water pipeline is coiled through the box body, the main drive motor controller 1 and the main drive motor 7 in sequence, and a water outlet of the cooling water pipeline is arranged on the main drive motor 7. Alternatively, the cooling water pipes may be integrally formed as one pipe, or may be formed in different sections and then connected in sequence. Three sections can be arranged at three positions of the box body, the main drive motor controller 1 and the main drive motor 7 and then are sequentially connected.
The cooling water flows into the cooling water pipeline from the water inlet of the side face of the box body, flows through the box body for heat dissipation, then enters the cooling water pipeline of the main drive motor controller 1 through the pipeline to dissipate heat of the main drive motor controller 1, enters the cooling water pipeline of the main drive motor 7 through the pipeline to dissipate heat of the main drive motor 7, and finally flows out from the water outlet of the main drive motor 7. Therefore, the purpose of liquid cooling heat dissipation of the whole power assembly system is achieved.
The working principle of the all-in-one electric drive assembly is as follows:
the VCU control PDU delivers high and low voltage power for each electrical control. The VCU communicates with each lower layer function controller through the CAN, controls the work of the MCU, the oil pump controller 3, the air pump controller 4, the low-voltage battery charger 6 and the gearbox controller according to the control strategy of the whole vehicle, collects, analyzes and diagnoses the electric control feedback signals, and controls the next step of ordered work of each electric control component after the overall diagnosis. The oil pump controller 3 and the air pump controller 4 respectively control the oil pump and the air pump to work according to the requirements of different working conditions. The MCU controls the operation of the main drive motor 7 and converts the high voltage electric energy of the battery pack into kinetic energy. The kinetic energy output by the main drive motor 7 is transferred to the gearbox 9 through a transmission shaft connected with the gearbox 9. The TCU adjusts the output speed ratio of the transmission 9 by controlling the XY gearshift 8. The gearbox 9 transmits the kinetic energy input by the main drive motor 7 to other transmission mechanisms of the automobile through an output transmission shaft, and finally drives the automobile wheels to rotate so as to achieve the purpose of driving the automobile to move.
The technical contents of the all-in-one electric drive assembly disclosed above are combined to obtain the following technical effects:
(1) the cost of the electric control part spare and accessory parts of the new energy automobile is reduced:
the cost of the system assembly is predicted to be reduced by more than 20 percent compared with the total cost of a plurality of single-function electric controls; the smaller the total power, the higher the cost savings.
And about 15 high-voltage and low-voltage cable harnesses are reduced, and the cost is saved by about 3500 Yuan (calculated by the conventional layout of a 12-meter bus).
And about 44 connectors of various high and low voltages are reduced, and the cost is saved by about 2600 yuan (calculated by the conventional layout of a 12-meter bus).
And fourthly, about 40 structural components such as water paths, seals, a shell and the like are reduced, and the cost is saved by about 2700 Yuan (calculated by the conventional layout of the 12-meter bus).
And the production process, the installation working hour, the maintenance cost and other costs of the assembly are reduced by about 800 yuan (calculated by the conventional layout of the 12-meter bus).
Sixthly, 22 moulds are reduced, and the mould opening cost is saved by 120 ten thousand (calculated by the conventional layout of a 12-meter bus).
(2) The integration level of the electric control product is improved:
the all-in-one integration is more compact, and nine scattered independent components are designed into a whole. There are no redundant components. The design that most of the devices are one is really realized.
Secondly, the assembly has compact structure and the power density is improved by more than 30 percent.
(3) Optimizing the structural space of the whole vehicle:
firstly, the layout space of the integrated system assembly is saved by more than 26 percent; the appearance is relatively harmonious as a whole.
The external connectors are convenient to arrange, external electric control is reduced, and direct wire connection of each electric control device is reduced.
Maintenance and installation are convenient, installation steps are reduced, and maintenance space is saved.
(4) The safety of the electric control product is improved:
firstly, high and low pressure isolation is convenient; the high-voltage distribution is distributed on one side of an inverter of the driving motor, and the low-voltage part is distributed on the other side.
The application requirements of the VCU gradient sensor are met; the slope sensor is horizontally arranged, and in order to accurately measure the size of the slope position, necessary information is provided for preventing vehicle sliding and starting optimal control.
And the multi-in-one internal wiring is convenient, most external long wire harnesses are replaced by internal short copper bars, and the electromagnetic compatibility of the system is improved.
And fourthly, potential safety hazards (such as electric leakage, combustion and the like) caused by aging of external circuits are reduced while external wiring is reduced.
The electric control independent cavities are changed into a single cavity, so that the system protection control is facilitated, and the system safety is increased.
In another aspect of the present disclosure, an electric vehicle is also disclosed, which includes a battery pack, a BMS (battery management system), and the all-in-one electric drive assembly disclosed in any one of the above embodiments. The all-in-one electric drive assembly is fixedly connected with the vehicle body, and the top of the main drive motor 7 faces upwards; the battery pack and the BMS are electrically connected with the all-in-one electric drive assembly.
The whole all-in-one electric drive assembly is connected with external parts through a transmission flange plate 10 on a transmission case output shaft 11, for example, the flange plate on the transmission case output shaft 11 is connected with an output transmission shaft and is transmitted to other transmission mechanisms of an automobile through the output transmission shaft, and finally, wheels of the automobile are driven to rotate, so that the aim of driving the automobile to move is fulfilled.
After adopting this electric drive assembly of unifying more of this disclosure, electric automobile's electrical product can set to only contain battery system (containing BMS), unify control system (unify each functional control part of electric drive assembly go up integrated more) and auxiliary system (other electric auxiliary system) triplex more, has proposed the direction that future product integrated development.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. An all-in-one electric drive assembly, comprising:
the system comprises a main drive motor, a gearbox, a main drive motor controller, a power distribution unit, an oil pump controller, an air pump controller, a low-voltage battery charger, a vehicle control unit and a gearbox controller;
the main drive motor controller, the main drive motor and the gearbox are sequentially connected into a whole along the axial direction of the main drive motor;
the power distribution unit, the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit and the gearbox controller are all arranged at the top of the main drive motor, and the power distribution unit is positioned right above the main drive motor controller;
the main drive motor controller, the power supply distribution unit, the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit and the gearbox controller are electrically connected through signal cables, power cables or copper bars;
the top of the main driving motor is also provided with a plurality of connectors for electrical connection.
2. The all-in-one electric drive assembly according to claim 1, wherein a box is mounted on top of the main drive motor, and a portion of the box is located directly above the main drive motor controller;
the power distribution unit, the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit and the gearbox controller are installed in the box body.
3. The all-in-one electric drive assembly according to claim 2, wherein the power distribution unit is installed in the box body at a position directly above the main drive motor controller, and the oil pump controller, the air pump controller, the low-voltage battery charger, the vehicle control unit and the transmission case controller are installed in the box body in sequence in a direction away from the main drive motor controller.
4. The all-in-one electric drive assembly according to claim 3, wherein the main drive motor controller is electrically connected with the components in the box body through signal cables and high-voltage positive and negative bus bar copper bars; the main drive motor controller is electrically connected with the main drive motor through a signal cable and a high-voltage power cable.
5. The all-in-one electric drive assembly according to claim 3, wherein an XY gearshift mechanism is mounted on the gearbox, and the XY gearshift mechanism comprises a gearshift motor, a gear selection motor, a gearshift position sensor and a gear selection position sensor; the gear shifting motor and the gear selecting motor are respectively provided with a motor interface for power supply connection;
and the gearbox is provided with a vehicle speed sensor and a pressure switch.
6. The all-in-one electric drive assembly according to claim 5, wherein said connector is provided on a side of said case; the connector comprises a high-voltage power supply interface, a high-voltage power distribution output interface, an oil-gas pump power supply output interface, a low-voltage control interface and a low-voltage direct-current output interface;
the high-voltage power supply interface is used for being connected to a high-voltage battery pack of the whole vehicle through a high-voltage wire harness; the high-voltage distribution output interface is used for being respectively connected to the PTC heater and the whole vehicle air conditioner through high-voltage wiring harnesses; the oil-gas pump power supply output interface is used for being respectively connected to the air pump and the oil pump through high-voltage wiring harnesses; the low-voltage control interface is used for being respectively connected to the gear shifting position sensor, the gear selecting position sensor, the motor interface, the vehicle speed sensor, the pressure switch and other auxiliary electrical appliance units assembled on the electric automobile through low-voltage control wiring harnesses; the low-voltage direct current output interface is used for being connected to a low-voltage battery pack through a low-voltage wire harness to charge a low-voltage battery.
7. The all-in-one electric drive assembly according to claim 6, wherein the high voltage power interface comprises an all-in-one positive and negative power interface and a backup charging function interface.
8. The all-in-one electric drive assembly according to claim 3, wherein cooling water lines are provided in the case, the main drive motor controller and the main drive motor;
the water inlet of the cooling water pipeline is arranged on the side surface of the box body; the cooling water pipeline sequentially passes through the box body, the main drive motor controller and the main drive motor and is arranged in a coiled mode, and a water outlet of the cooling water pipeline is arranged on the main drive motor.
9. The all-in-one electric drive assembly according to any one of claims 1 to 8, wherein a front end cover of the main drive motor is fixedly connected with a flange plate of the gearbox; and the rear end cover of the main drive motor is fixedly connected with the main drive motor controller.
10. An electric vehicle comprising a battery pack, a BMS, the all-in-one electric drive assembly of any of claims 1 to 9;
the all-in-one electric drive assembly is fixedly connected with a vehicle body, and the top of the main drive motor faces upwards; the battery pack, the BMS and the all-in-one electric drive assembly are electrically connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120042640.4U CN216231640U (en) | 2021-01-08 | 2021-01-08 | All-in-one electric drive assembly and electric automobile comprising same |
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| CN202120042640.4U CN216231640U (en) | 2021-01-08 | 2021-01-08 | All-in-one electric drive assembly and electric automobile comprising same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701342A (en) * | 2022-05-11 | 2022-07-05 | 珠海英搏尔电气股份有限公司 | Electric drive system and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701342A (en) * | 2022-05-11 | 2022-07-05 | 珠海英搏尔电气股份有限公司 | Electric drive system and vehicle |
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Address after: 201506 Building 2, No. 8158, Tingwei Road, Jinshan District, Shanghai Patentee after: Tebaijia Power Technology Co.,Ltd. Address before: 201506 Building 2, No. 8158, Tingwei Road, Jinshan District, Shanghai Patentee before: TOP GEAR POWERTRAIN TECHNOLOGY Co.,Ltd. |
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