CN218702734U - New energy automobile energy recuperation device and vehicle - Google Patents
New energy automobile energy recuperation device and vehicle Download PDFInfo
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- CN218702734U CN218702734U CN202222348779.9U CN202222348779U CN218702734U CN 218702734 U CN218702734 U CN 218702734U CN 202222348779 U CN202222348779 U CN 202222348779U CN 218702734 U CN218702734 U CN 218702734U
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Abstract
The utility model discloses a new energy automobile energy recuperation device and vehicle relates to the new energy automobile field for solve among the prior art the low and new energy automobile energy recuperation device energy recovery rate vacuum boost hydraulic braking system brake pedal idle stroke length, the poor scheduling problem of anterior segment braking effect of the present mainly used of new energy automobile. The energy recovery device comprises a vehicle electronic control unit and a motor, wherein the electronic control unit is connected with the motor, the energy recovery threshold is set to be the energy recovery threshold under a full-load scene, the energy recovery rate is improved, the motor acts reverse torque on wheels during braking, and the problems of long idle stroke, poor front-section braking effect and the like of a brake pedal of a vacuum power-assisted hydraulic braking system are solved. The electronic control unit is connected with an anti-lock system or an automobile electronic stability control system, when the vehicle is about to be locked, energy recovery is quitted, reverse torque values are reduced step by step, and the vehicle is prevented from being locked.
Description
Technical Field
The application mainly relates to the field of new energy vehicles, in particular to a new energy vehicle energy recovery device and a vehicle.
Background
At present, most new energy automobiles adopt a vacuum power-assisted hydraulic braking system, and the system adopts a large-sized brake and a brake cylinder, so that the brake cannot transmit brake fluid to the brake cylinder in time, and the brake cylinder cannot clamp a brake pad in time, thereby solving the problems of long idle stroke of a vehicle brake pedal, poor front-section braking effect and the like.
In addition, different from a fuel vehicle, the new energy vehicle has an energy recovery function, kinetic energy of the vehicle can be converted into electric energy through power generation of a generator to be stored in a battery, a reverse torque value is set when the vehicle is not loaded with cargo or loaded with people, for example, 50n.m is used as an energy recovery threshold value when the vehicle is unloaded, when the vehicle receives an energy recovery signal, a motor recovers residual kinetic energy of the vehicle to provide a reverse torque of 0-50n.m for energy recovery, but at present, energy recovery is performed when the vehicle is braked through the energy recovery threshold value set when the vehicle is unloaded, the overall energy recovery efficiency is low, when the vehicle is fully loaded, the energy recovery threshold value is set to be 100n.m, and when the reverse torque is larger than wheel torque when the vehicle is unloaded, the situation that the rear wheels are locked to cause out of control easily occurs. In addition, when the motor is withdrawn from energy recovery, the reverse torque of the motor is rapidly reduced to 0, thereby causing a sudden "jerky" feeling of acceleration of the vehicle.
SUMMERY OF THE UTILITY MODEL
The utility model provides a new energy automobile energy recuperation device has solved among the prior art new energy automobile energy recovery rate low and vehicle brake pedal idle stroke long, the poor scheduling problem of anterior segment braking effect.
In a first aspect, the application provides a new energy automobile energy recovery device, including:
the vehicle comprises a vehicle electronic control unit and a motor, wherein the vehicle electronic control unit is connected with the motor;
the motor is set with a reverse torque threshold value when the motor is fully loaded, the electronic control unit receives a trigger signal of an anti-lock system of a vehicle or an electronic stability control system of the vehicle, generates a control signal and transmits the control signal to the motor;
the motor receives a control signal of an electronic control unit of the vehicle and reduces a reverse torque value.
In one possible design, the electronic control unit comprises a calculation module for calculating the value of the reverse torque currently provided by the electric machine.
In one possible design, the electronic control unit further comprises a control module for controlling the electric machine to increase or decrease the reverse torque value.
In one possible embodiment, the electronic control unit includes a first communication interface, which is connected to a second communication interface of the vehicle anti-lock braking system or the vehicle electronic stability control system, and transmits the trigger signal through the first communication interface and the second communication interface.
In one possible embodiment, the battery comprises a charging interface, by means of which the electric motor is connected to the battery.
In one possible design, the battery includes a charge sensor, and the charge sensor is connected to the battery and is configured to detect a current remaining charge of the vehicle and output the current remaining charge to the electronic control unit.
In one possible embodiment, the electric machine is connected to a brake system, which sends a braking signal to the electric machine when the vehicle is braking, said electric machine applying a counter torque to the vehicle wheels.
In one possible embodiment, the electric machine is connected to a battery, which receives and stores the electrical energy transmitted by the electric machine.
In one possible design, the electric machine is connected to an electronic control unit of the vehicle, and the electric machine is controlled to reduce the reverse torque value step by step according to a preset slope.
In a second aspect, the present application provides a new energy automobile including any of the energy recovery devices described in the first aspect.
The utility model discloses a beneficial effect as follows:
the energy recovery device of the new energy automobile can improve the energy recovery rate by setting a reverse torque value as an energy recovery threshold value in a scene when the new energy automobile is fully loaded, is connected with an anti-lock system or an automobile electronic stability control system through an electronic control unit, and sends a trigger signal to the electronic control unit when the anti-lock system or the automobile electronic stability control system detects that the automobile is about to be locked, and then the electronic control unit sends a control signal to a motor to control the motor to quit energy recovery and reduce the reverse torque step by step, so that the locking of the automobile and the sudden acceleration 'abrupt feeling' generated when the reverse torque is suddenly reduced can be prevented; and when the motor recovers energy, a part of reverse torque is provided to act on the wheels, so that the problems of long idle stroke of a brake pedal and poor front-section braking effect when the vacuum hydraulic braking system brakes can be solved.
Drawings
Fig. 1 is a schematic structural diagram of an energy recovery device according to an embodiment of the present invention;
fig. 2 is a schematic view of an energy recovery device applied to a vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic control unit according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a communication interface according to an embodiment of the present invention;
fig. 5 is a schematic view of a battery charging interface according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a battery structure according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a motor and a braking system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings. The particular methods of operation in the method embodiments may also be applied to apparatus embodiments or system embodiments. It should be noted that "a plurality" is understood as "at least two" in the description of the present application. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. A is connected with B and can represent: a and B are directly connected and A and B are connected through C. In addition, in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not intended to indicate or imply relative importance nor order to be construed.
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the new energy automobile energy recovery device comprises a vehicle electronic control unit 10 and a motor 11, wherein the motor 11 is connected with the vehicle electronic control unit 10.
Specifically, the new energy automobile energy recovery device provided by the embodiment of the application can be installed in the vehicle shown in fig. 2, and the vehicle shown in fig. 2 includes a driving system (not shown in the figure) and a braking system (not shown in the figure). In the embodiment of the present application, different reverse torque thresholds can be configured on the motor 11, such as an idle reverse torque threshold based on a scenario configuration at idle and a full reverse torque threshold based on a scenario configuration at full.
In the case where the motor 11 sets a reverse torque threshold value at the time of full load, when the anti-lock system 12 in the vehicle detects that the vehicle is about to enter a lock state, the anti-lock system 12 or the automotive electronic stability control system 13 outputs a trigger signal to the electronic control unit 10.
The electronic control unit 10 receives a trigger signal of a vehicle anti-lock system 12 or a vehicle electronic stability control system 13, and the electronic control unit 10 generates a control signal and transmits the control signal to the motor 11;
the motor 11 receives a control signal of the electronic control unit 10 of the vehicle and reduces a reverse torque value.
Further, as shown in fig. 3, the vehicle electronic control unit 10 includes a calculation module 14 and a control module 15, the calculation module 14 in the electronic control unit 10 is configured to calculate a reverse torque value currently provided by the motor, and send the reverse torque value to the control module 15, and the control module 15 controls the motor 10 to increase or decrease the reverse torque value according to a trigger signal received by the electronic control unit 10 at this time, when the vehicle is about to be locked, the motor is required to decrease the provided reverse torque, for example, the motor 11 decreases the reverse torque value from 100n.m to 50n.m step by step, so as to ensure that the vehicle is not locked and is not out of control.
When the vehicle starts to brake, the motor 11 needs to recover the remaining kinetic energy, and at this time, the reverse torque may be increased step by step, for example, when the driver depresses the brake pedal, the motor 11 starts to recover the remaining kinetic energy and generate the reverse torque, and if the electronic control unit 10 does not receive the trigger signal of the anti-lock system 12 in the process, the reverse torque of the motor 11 is increased step by step from 0 to 100n.m, so that the energy recovery is realized through the process.
Further, as shown in fig. 4, the vehicle electronic control unit 10 includes a first communication interface, and the vehicle anti-lock system 12 or the vehicle electronic stability control system 13 includes a second communication interface, and the vehicle electronic control unit 10 is connected to the vehicle anti-lock system 12 or the vehicle electronic stability control system 13 through the first communication interface and the second communication interface; specifically, a first communication interface of the electronic control unit 10 is connected with a second communication interface of the anti-lock system 12 or the electronic stability control system 13 of the vehicle, when the anti-lock system 12 or the electronic stability control system 13 of the vehicle detects that the vehicle is about to be locked, the anti-lock system 12 or the electronic stability control system 13 of the vehicle can send a trigger signal to the electronic control unit 10 through the communication interface, the electronic control unit 10 sends a control signal to the motor 11, and at this time, the motor 11 quits energy recovery and reduces the reverse torque value step by step; when the motor 11 is withdrawn from energy recovery, the reverse torque decreases step by step according to a preset slope, for example, from 100n.m to 90n.m and then to 80n.m until it decreases to 0.
By the device, when the motor 11 withdraws energy recovery, the reverse torque of the motor 11 can be prevented from being rapidly reduced to 0, so that sudden acceleration 'abrupt feeling' caused by the reverse torque can be further avoided, and the experience of drivers and passengers can be improved.
Further, as shown in fig. 5, the energy recovery device is connected to the battery 16, and includes a charging interface on the battery 16, through which the battery 16 is connected to the motor 11; specifically, when the vehicle starts braking, the motor 11 receives a control signal sent by the electronic control unit 10, starts to collect the residual kinetic energy of the vehicle and converts the collected residual kinetic energy of the vehicle into electric energy, and transmits the recovered electric energy to the battery through the charging interface, thereby realizing energy recovery in the braking process.
Further, as shown in fig. 6, the energy recovery device is connected to the battery 16, and the battery 16 includes a power sensor 17, the power sensor 17 is connected to the battery 16, the power sensor 17 detects the current remaining power of the vehicle in real time and outputs the current remaining power to the vehicle electronic control unit 10, and when the capacity of the battery 16 is not full, the motor 11 can recover the vehicle remaining kinetic energy and convert the vehicle remaining kinetic energy into electric energy to charge the battery 16.
Further, as shown in fig. 7, the motor 11 is connected to the braking system 18, when the motor 11 receives a braking signal, the generated reverse torque is applied to the wheels, and the braking is realized by the reverse torque of the motor 11 in the first half of the braking of the vacuum hydraulic braking system, so that the problems of long idle stroke of the brake pedal, poor front-section braking effect and the like during the braking of the vacuum hydraulic braking system can be solved.
According to the new energy automobile energy recovery device, a reverse torque value is set as an energy recovery threshold value in a full-load scene, the energy recovery rate can be improved, the electronic control unit is connected with an anti-lock system or an automobile electronic stability control system, when the anti-lock system or the automobile electronic stability control system detects that the automobile is about to be locked, a trigger signal is sent to the electronic control unit, the electronic control unit sends a control signal to the motor again, the motor is controlled to quit energy recovery and reduce the reverse torque step by step, and the vehicle can be prevented from being locked and generating sudden acceleration when the reverse torque is suddenly reduced; and when the motor recovers energy, a part of reverse torque is provided to act on the wheels, so that the problems of long idle stroke of a brake pedal and poor front section brake effect during braking of the vacuum hydraulic brake system can be solved.
Additionally, the utility model provides a vehicle still provides, including vehicle chassis, braking system, actuating system, vehicle shell and electrical system, still include as above-mentioned arbitrary energy recuperation device.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a new energy automobile energy recuperation device which characterized in that includes: the vehicle comprises a vehicle electronic control unit and a motor, wherein the vehicle electronic control unit is connected with the motor;
the motor is set with a reverse torque threshold value when the motor is fully loaded, the electronic control unit receives a trigger signal of an anti-lock system of a vehicle or an electronic stability control system of the vehicle, generates a control signal and transmits the control signal to the motor;
the motor receives a control signal of an electronic control unit of the vehicle and reduces a reverse torque value.
2. The new energy vehicle energy recovery device of claim 1, wherein the electronic control unit comprises a calculation module for calculating a reverse torque value currently provided by the electric machine.
3. The new energy vehicle energy recovery device of claim 1, wherein the electronic control unit further comprises a control module for controlling the motor to increase or decrease the reverse torque value.
4. The new energy vehicle energy recovery device of claim 1, wherein the electronic control unit comprises a first communication interface, the first communication interface is connected with a second communication interface of the vehicle anti-lock braking system or the vehicle electronic stability control system, and the trigger signal is transmitted through the first communication interface and the second communication interface.
5. The new energy automobile energy recovery device of claim 1, wherein the new energy automobile energy recovery device is connected with a battery, the battery comprises a charging interface, and the motor is connected with the battery through the charging interface.
6. The new energy vehicle energy recovery device of claim 5, wherein the battery comprises a charge sensor, and the charge sensor is connected with the battery and used for detecting the current remaining charge of the vehicle and outputting the current remaining charge to the electronic control unit.
7. The new energy automobile energy recovery device of claim 1, wherein the motor is connected with a braking system, and when the automobile brakes, the braking system sends a braking signal to the motor, and the motor applies reverse torque to the wheels.
8. The energy recovery device of new energy vehicle as claimed in claim 5, wherein the electric motor is connected to the battery, and the battery receives and stores the electric energy transmitted by the electric motor.
9. The new energy automobile energy recovery device as claimed in claim 1, wherein the motor is connected with an electronic control unit of the vehicle, and the motor is controlled to reduce the reverse torque value step by step according to a preset slope.
10. A vehicle, characterized by comprising the new energy automobile energy recovery device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222348779.9U CN218702734U (en) | 2022-09-02 | 2022-09-02 | New energy automobile energy recuperation device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222348779.9U CN218702734U (en) | 2022-09-02 | 2022-09-02 | New energy automobile energy recuperation device and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218702734U true CN218702734U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222348779.9U Active CN218702734U (en) | 2022-09-02 | 2022-09-02 | New energy automobile energy recuperation device and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN218702734U (en) |
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2022
- 2022-09-02 CN CN202222348779.9U patent/CN218702734U/en active Active
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