CN113895239A - Electric working machine and energy recovery method and device thereof - Google Patents
Electric working machine and energy recovery method and device thereof Download PDFInfo
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- CN113895239A CN113895239A CN202111107730.8A CN202111107730A CN113895239A CN 113895239 A CN113895239 A CN 113895239A CN 202111107730 A CN202111107730 A CN 202111107730A CN 113895239 A CN113895239 A CN 113895239A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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Abstract
The invention provides an electric working machine and an energy recovery method and device thereof, wherein the energy recovery method of the electric working machine comprises the following steps: acquiring the whole vehicle working condition parameters of the electric operation machinery; acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range; acquiring a maximum energy recovery switch trigger state under the condition that the opening degree of an accelerator pedal is smaller than a target opening degree threshold value; under the condition that the triggering state of the maximum energy recovery switch is closed, acquiring the opening degree of a brake pedal; and outputting an energy recovery control instruction based on the opening degree of the brake pedal, wherein the energy recovery control instruction is used for controlling an energy recovery mechanism to recover energy according to the target recovery intensity. The electric operation machine and the energy recovery method and device thereof provided by the invention determine which recovery strength is adopted to recover energy according to the opening degree of an accelerator pedal, the opening degree of a brake pedal and the triggering state of a maximum energy recovery switch, so that a driver can operate more flexibly, and the energy utilization rate and the operation time are improved.
Description
Technical Field
The invention relates to the technical field of electric operation machinery, in particular to an electric operation machinery and an energy recovery method and device thereof.
Background
The electric working machine is usually required to bear heavy goods or working equipment to run on a road, the load is large, and therefore high energy supply is required, the electric working machine converts electric energy into mechanical energy in the working process, and under the condition of carrying out high-energy-consumption transportation work, how to save energy sources is achieved, and the technical problem of increasing attention is paid to recycling of the energy sources.
The existing electric operation machine does not adopt a scheme of energy recycling, the utilization rate of the energy is low, and the operation time is short.
Disclosure of Invention
The invention provides an electric operation machine and an energy recovery method and device thereof, which are used for overcoming the defects of low energy utilization rate and short operation time in the prior art, realizing more flexible operation of a driver, improving the energy utilization rate and prolonging the operation time.
The present invention provides an energy recovery method for an electric working machine, including: acquiring the whole vehicle working condition parameters of the electric operation machinery; acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range; acquiring a maximum energy recovery switch trigger state under the condition that the opening degree of the accelerator pedal is smaller than a target opening degree threshold value; under the condition that the maximum energy recovery switch is in a closed state, acquiring the opening degree of a brake pedal; and outputting an energy recovery control instruction based on the opening degree of the brake pedal, wherein the energy recovery control instruction is used for controlling an energy recovery mechanism to recover energy according to the target recovery intensity.
According to an energy recovery method for an electric working machine provided by the present invention, the energy recovery method for an electric working machine further includes: and under the condition that the triggering state of the maximum energy recovery switch is on, outputting a maximum energy recovery instruction, wherein the maximum energy recovery instruction is used for controlling the energy recovery mechanism to recover energy according to the maximum energy recovery intensity.
According to an energy recovery method of an electric working machine according to the present invention, outputting an energy recovery control command based on the opening degree of the brake pedal includes: and under the condition that the opening degree of the brake pedal is smaller than a first opening degree threshold value, outputting a pause recovery instruction, wherein the pause recovery instruction is used for controlling the energy recovery mechanism to pause the recovery of energy.
According to an energy recovery method of an electric working machine according to the present invention, outputting an energy recovery control command based on the opening degree of the brake pedal includes: and under the condition that the opening degree of the brake pedal is greater than a second opening degree threshold value, outputting a brake recovery instruction, wherein the second opening degree threshold value is greater than the first opening degree threshold value, and the brake recovery instruction is used for controlling the energy recovery mechanism to recover energy according to brake recovery strength.
According to an energy recovery method of an electric working machine according to the present invention, outputting an energy recovery control command based on the opening degree of the brake pedal includes: receiving a first input of a user under the condition that the brake pedal opening degree is greater than the first opening degree threshold value and less than the second opening degree threshold value; in response to the first input, obtaining a target recovery intensity; outputting the coast recovery instruction based on the target recovery intensity.
According to an energy recovery method of an electric working machine provided by the present invention, the receiving a first input of a user includes: receiving the first input through a recovery intensity adjustment switch having a plurality of gears.
The present invention also provides an energy recovery device for an electric working machine, including: the first acquisition module is used for acquiring the whole vehicle working condition parameters of the electric operation machine; the second acquisition module is used for acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range; the third acquisition module is used for acquiring the triggering state of the maximum energy recovery switch under the condition that the opening degree of the accelerator pedal is smaller than a target opening degree threshold value; the fourth acquisition module is used for acquiring the opening degree of a brake pedal under the condition that the triggering state of the maximum energy recovery switch is closed; and the output module is used for outputting an energy recovery control instruction based on the opening degree of the brake pedal and the maximum energy recovery switch, and the energy recovery control instruction is used for controlling the energy recovery mechanism to recover energy according to the target recovery intensity.
The present invention also provides an electric working machine including: an energy recovery mechanism; and an energy recovery device for an electric working machine according to any one of the above, wherein the energy recovery device for an electric working machine is electrically connected to the energy recovery mechanism.
The present invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method for recovering energy of an electric working machine as described in any one of the above when executing the program.
The invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the method of energy recovery for an electric working machine as defined in any one of the above.
According to the electric operation machine and the energy recovery method and device thereof, which are provided by the invention, the recovery strength is determined to be adopted for energy recovery according to the opening degree of an accelerator pedal, the opening degree of a brake pedal and the trigger state of a maximum energy recovery switch, so that the operation of a driver is more flexible, the energy utilization rate is improved, and the operation time is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method of energy recovery for an electric work machine provided by the present disclosure;
fig. 2 is a block diagram of a process of an energy recovery method for an electric working machine according to the present invention;
fig. 3 is a schematic structural view of an energy recovery device of an electric working machine according to the present invention;
FIG. 4 is a schematic illustration of an electric work machine according to the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The electric working machine and the energy recovery method and apparatus thereof of the present invention are described below with reference to fig. 1 to 5.
The electric operation machine can comprise a traction vehicle, a concrete pump truck, a concrete mixing transport vehicle, a dump truck, an automobile crane, a truck-mounted crane transport vehicle and the like which are all powered by pure electric power, hybrid power and fuel cells.
As shown in fig. 1, the present invention provides an energy recovery method for an electric working machine, which includes the following steps 110 to 150.
And 110, acquiring the whole vehicle working condition parameters of the electric operation machine.
It is understood that the operating condition refers to an operating state of the electric working machine under a condition directly related to the action thereof, and according to the movement form of the electric working machine, there may be: the running conditions of starting, accelerating, constant speed, decelerating, turning, ascending and descending, parking and the like; the control modes of the driver mainly comprise: the working conditions of gear shifting, speed changing, sliding (sliding with gear or sliding in neutral gear), braking (emergency braking, speed control braking and brake braking), accelerator speed control, steering, backing and the like; according to the load conditions of the electric working machine, there are mainly: no-load, full load (equal to rated load) and overload (exceeding rated load).
The whole vehicle working condition parameters of the electric operation machine refer to various working state physical parameters of the electric operation machine, the whole vehicle working condition parameters can reflect the working state of the electric operation machine, and the working state of the electric operation machine at the corresponding time can be judged to be unsuitable for energy recovery by monitoring the whole vehicle working condition parameters.
The energy recovery means that in the running process of the electric operation machine, partial kinetic energy of the whole machine is converted into electric energy to charge a battery, so that the function of recovering partial kinetic energy is realized.
And 120, acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in the recovery working condition range.
It can be understood that the recovery working condition range can be a manually set working condition parameter range which accords with the energy recovery requirement, that is to say, whether the whole vehicle working condition parameter falls into the recovery working condition range can be seen by comparing the whole vehicle working condition parameter with the recovery working condition range, and when the whole vehicle working condition parameter is in the recovery working condition range, the working state of the electric operation machine is determined to be suitable for energy recovery.
When the working condition parameters of the whole vehicle meet the basic requirement of energy recovery, the opening degree of an accelerator pedal is obtained, the accelerator pedal is a running speed control mechanism of the electric working machine and is generally called as an accelerator, and a driver can adjust the opening degree of the accelerator pedal by stepping on the accelerator pedal, so that the acceleration degree of the electric working machine is controlled, and the running speed of the electric working machine is adjusted.
Here, the operating state of the accelerator pedal is detected, and the accelerator pedal opening degree may be acquired by a sensor element such as a pressure sensor, an angle sensor, or a photoelectric sensor.
It is understood that the target opening degree threshold may be a threshold of accelerator pedal opening degree set for human, and the accelerator pedal opening degree detected in real time is compared with the target opening degree threshold to obtain a comparison result.
And step 130, acquiring the trigger state of the maximum energy recovery switch when the opening degree of the accelerator pedal is smaller than the target opening degree threshold value.
The maximum energy recovery switch can be a key, a knob or a touch key on a display screen, a user can trigger the maximum energy recovery switch, and when the maximum energy recovery switch is turned on, the electric operation machine can recover energy with the maximum energy recovery intensity.
And 140, acquiring the opening degree of the brake pedal under the condition that the triggering state of the maximum energy recovery switch is closed. The brake pedal is also a traveling speed control means for the electric working machine, and is generally called a brake, and the driver can control the degree of deceleration of the electric working machine by stepping on the brake pedal to adjust the opening degree of the brake pedal, thereby adjusting the degree of deceleration of the traveling speed of the electric working machine.
Here, the operating state of the brake pedal may be detected by a pressure sensor, a contact switch, a displacement sensor, an angle sensor, or a photoelectric sensor, for example, to obtain the opening degree of the brake pedal.
And 150, outputting an energy recovery control instruction based on the opening degree of the brake pedal, wherein the energy recovery control instruction is used for controlling an energy recovery mechanism to recover energy according to the target recovery intensity.
It is understood that, in the case where the accelerator pedal opening is smaller than the target opening threshold and the maximum energy recovery switch is turned off, the magnitude of the target recovery strength, which is used for representing the magnitude of the energy recovery of the electric working machine, may be determined according to the brake pedal opening, and may be embodied as the magnitude of the recovery torque of the energy recovery mechanism.
That is, the target recovery intensity may be calculated from the opening degree of the brake pedal, and the energy recovery control command may be output to the energy recovery mechanism so that the energy recovery mechanism can recover energy in accordance with the target recovery intensity.
Specifically, the method for calculating the target recovery strength according to the opening degree of the brake pedal may obtain the target recovery strength corresponding to the opening degree of the brake pedal by comparing with a corresponding threshold, may also find the target recovery strength from a prestored form by using the opening degree of the brake pedal, and may also calculate the target recovery strength according to the opening degree of the brake pedal by using a function curve manner, which is not particularly limited herein, and may be selected by a person skilled in the art according to actual requirements.
It is worth noting that the scheme of the embodiment is adopted, so that the operation of a driver is richer, the driving intention expression of the driver can be more obvious through the combination of the accelerator pedal, the brake pedal and the maximum energy recovery switch, the operation adaptability of the driver is improved, and the active driving performance and the operation flexibility of the driver are improved.
According to the energy recovery method of the electric operation machine, which is provided by the invention, the recovery strength is determined to be adopted for energy recovery according to the opening degree of the accelerator pedal, the opening degree of the brake pedal and the trigger state of the maximum energy recovery switch, so that the operation of a driver is more flexible, the energy utilization rate is improved, and the operation time is prolonged.
As shown in fig. 2, in some embodiments, the method of energy recovery for an electric work machine further comprises: and under the condition that the triggering state of the maximum energy recovery switch is on, outputting a maximum energy recovery instruction, wherein the maximum energy recovery instruction is used for controlling the energy recovery mechanism to recover energy according to the maximum energy recovery intensity.
It can be understood that the vehicle control unit of the electric working machine may be electrically connected to the maximum energy recovery switch, and the maximum energy recovery switch may realize maximum energy recovery by one key, that is, when the user triggers the maximum energy recovery switch to turn on, if the opening degree of the accelerator pedal is less than the target opening degree threshold, the maximum energy recovery instruction may be directly output, and the maximum energy recovery instruction may control the energy recovery mechanism to perform energy recovery according to the maximum energy recovery strength.
The maximum energy recovery switch is arranged, so that the maximum energy recovery switch can be used for the working condition similar to a long downhill, the energy recovery maximization is realized, the working load of a brake is reduced, and the operation intensity of a driver is reduced.
As shown in fig. 2, in some embodiments, the step 150 of outputting the energy recovery control command based on the opening degree of the brake pedal includes: and under the condition that the opening degree of the brake pedal is smaller than the first opening degree threshold value, outputting a recovery pause instruction, wherein the recovery pause instruction is used for controlling the energy recovery mechanism to pause the recovery of energy.
It can be understood that when the vehicle condition parameter is in the recovery condition range and the accelerator pedal opening is smaller than the target opening threshold, the target recovery strength is calculated according to the brake pedal opening.
In this embodiment, a first opening threshold value is set, for example, the first opening threshold value may be a calibrated value of a brake pedal at a point 0, when the opening of the brake pedal is smaller than the first opening threshold value, the opening of the brake pedal is smaller at this time, the deceleration effect is weaker, the electric working machine is in a sliding state with a gear, at this time, energy should be mainly used for driving the electric working machine to run, where energy may not be recovered, a suspend recovery instruction is output, and the energy recovery mechanism is controlled to suspend recovering energy.
The pause recovery command is output, so that the motor recovery control device can be used for the working condition of not outputting power and stepping on braking for deceleration, reduces frequent switching between a motor recovery mode and a driving mode, lightens the operation intensity of a driver, and further improves the energy utilization rate.
As shown in fig. 2, in some embodiments, the step 150 of outputting the energy recovery control command based on the opening degree of the brake pedal includes: and under the condition that the opening degree of the brake pedal is greater than a second opening degree threshold value, outputting a brake recovery instruction, wherein the second opening degree threshold value is greater than the first opening degree threshold value, and the brake recovery instruction is used for controlling the energy recovery mechanism to recover energy according to the brake recovery strength.
It can be understood that a second opening threshold may be set, where the second opening threshold is greater than the first opening threshold, and then, when the opening of the brake pedal is greater than the second opening threshold, the opening of the brake pedal is also greater than the first opening threshold, at this time, the electric working machine may recover the braking energy, and therefore may output a braking recovery instruction to the energy recovery mechanism, where the braking recovery instruction may control the energy recovery mechanism to recover the energy according to the braking recovery strength, and the braking recovery strength may be preset, or may be calibrated according to parameters of an actual braking mechanism, and this is not limited specifically here.
As shown in fig. 2, in some embodiments, the step 150 of outputting the energy recovery control command based on the opening degree of the brake pedal includes: receiving a first input of a user under the condition that the opening degree of the brake pedal is greater than a first opening degree threshold value and smaller than a second opening degree threshold value; in response to the first input, obtaining a target recovery strength; and outputting a sliding recovery instruction based on the recovery strength information.
It is understood that if the brake pedal opening is between the first opening threshold and the second opening threshold, a first input from the user may be received through the interaction device, where the target recovery intensity may be obtained in response to the first input, and the first input may be received through the recovery intensity adjustment switch or may be received through the touch display screen.
That is, when the brake pedal opening degree is between the first opening degree threshold value and the second opening degree threshold value, the target recovery intensity may be determined by the user, and the electric working machine may perform energy recovery in accordance with the target recovery intensity determined by the user's own input.
In some embodiments, receiving a first input by a user comprises: a first input is received through a recovery intensity adjustment switch having a plurality of gears.
It can be understood that, can set up and retrieve intensity adjustment switch, retrieve intensity adjustment switch and can be connected with the vehicle control unit electricity, and first input can be received through retrieving intensity adjustment switch, retrieves intensity adjustment switch and can have a plurality of fender position, for example can have three fender position, through setting up and retrieving intensity adjustment switch, can make the user can give first input more convenient and fast ground.
The following describes an energy recovery device of an electric working machine according to the present invention, and the energy recovery device of an electric working machine described below and the energy recovery method of an electric working machine described above may be referred to in correspondence with each other.
As shown in fig. 3, the present invention also provides an energy recovery device for an electric working machine, including: a first obtaining module 310, a second obtaining module 320, a third obtaining module 330, a fourth obtaining module 340, and an output module 350.
The first obtaining module 310 is configured to obtain a vehicle operating condition parameter of the electric working machine.
And the second obtaining module 320 is configured to obtain the opening degree of the accelerator pedal when the operating condition parameter of the whole vehicle is within the recovery operating condition range.
A third obtaining module 330, configured to obtain a maximum energy recovery switch trigger state when the accelerator pedal opening is smaller than a target opening threshold.
A fourth obtaining module 340, configured to obtain a brake pedal opening degree when the maximum energy recovery switch is turned off.
And an output module 350, configured to output an energy recovery control instruction based on the opening degree of the brake pedal, where the energy recovery control instruction is used to control the energy recovery mechanism to perform energy recovery according to the target recovery intensity.
The energy recovery device of an electric working machine according to the embodiment of the present application is used for executing the energy recovery method of the electric working machine, and the specific implementation manner thereof is consistent with the method implementation manner, and can achieve the same beneficial effects, and the details are not repeated herein.
The present invention also provides an electric working machine including: an energy recovery mechanism and an energy recovery device of an electric working machine according to any of the above embodiments, wherein the energy recovery device of the electric working machine is electrically connected to the energy recovery mechanism.
As shown in fig. 4, in some embodiments, the electric working machine may include a vehicle controller 410, an accelerator pedal opening sensor 420, a brake pedal opening sensor 450, a maximum energy recovery switch 430, and a recovery strength adjustment switch 440, where the maximum energy recovery switch 430 and the recovery strength adjustment switch 440 are both electrically connected to the vehicle controller 410, a brake pedal is electrically connected to the vehicle controller 410 through the brake pedal opening sensor 450, and an accelerator pedal is electrically connected to the vehicle controller 410 through the accelerator pedal opening sensor 420.
Fig. 5 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 5: a processor (processor)510, a communication Interface (Communications Interface)520, a memory (memory)530 and a communication bus 540, wherein the processor 510, the communication Interface 520 and the memory 530 communicate with each other via the communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform a method of energy recovery for an electric work machine, the method comprising: acquiring the whole vehicle working condition parameters of the electric operation machinery; acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range; acquiring a maximum energy recovery switch trigger state under the condition that the opening degree of the accelerator pedal is smaller than a target opening degree threshold value; under the condition that the maximum energy recovery switch is in a closed state, acquiring the opening degree of a brake pedal; and outputting an energy recovery control instruction based on the opening degree of the brake pedal, wherein the energy recovery control instruction is used for controlling an energy recovery mechanism to recover energy according to the target recovery intensity.
Furthermore, the logic instructions in the memory 530 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the method for energy recovery of an electric work machine provided by the above methods, the method comprising: acquiring the whole vehicle working condition parameters of the electric operation machinery; acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range; acquiring a maximum energy recovery switch trigger state under the condition that the opening degree of the accelerator pedal is smaller than a target opening degree threshold value; under the condition that the maximum energy recovery switch is in a closed state, acquiring the opening degree of a brake pedal; and outputting an energy recovery control instruction based on the opening degree of the brake pedal, wherein the energy recovery control instruction is used for controlling an energy recovery mechanism to recover energy according to the target recovery intensity.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the method of energy recovery for an electric work machine provided above, the method comprising: acquiring the whole vehicle working condition parameters of the electric operation machinery; acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range; acquiring a maximum energy recovery switch trigger state under the condition that the opening degree of the accelerator pedal is smaller than a target opening degree threshold value; under the condition that the maximum energy recovery switch is in a closed state, acquiring the opening degree of a brake pedal; and outputting an energy recovery control instruction based on the opening degree of the brake pedal, wherein the energy recovery control instruction is used for controlling an energy recovery mechanism to recover energy according to the target recovery intensity.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of recovering energy from an electric working machine, comprising:
acquiring the whole vehicle working condition parameters of the electric operation machinery;
acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range;
acquiring a maximum energy recovery switch trigger state under the condition that the opening degree of the accelerator pedal is smaller than a target opening degree threshold value;
under the condition that the maximum energy recovery switch is in a closed state, acquiring the opening degree of a brake pedal;
and outputting an energy recovery control instruction based on the opening degree of the brake pedal, wherein the energy recovery control instruction is used for controlling an energy recovery mechanism to recover energy according to the target recovery intensity.
2. The energy recovery method for an electric working machine according to claim 1, further comprising:
and under the condition that the triggering state of the maximum energy recovery switch is on, outputting a maximum energy recovery instruction, wherein the maximum energy recovery instruction is used for controlling the energy recovery mechanism to recover energy according to the maximum energy recovery intensity.
3. The energy recovery method for an electric working machine according to claim 1, wherein the outputting an energy recovery control command based on the brake pedal opening degree includes:
and under the condition that the opening degree of the brake pedal is smaller than a first opening degree threshold value, outputting a pause recovery instruction, wherein the pause recovery instruction is used for controlling the energy recovery mechanism to pause the recovery of energy.
4. The energy recovery method for an electric working machine according to claim 3, wherein outputting an energy recovery control command based on the brake pedal opening degree includes:
and under the condition that the opening degree of the brake pedal is greater than a second opening degree threshold value, outputting a brake recovery instruction, wherein the second opening degree threshold value is greater than the first opening degree threshold value, and the brake recovery instruction is used for controlling the energy recovery mechanism to recover energy according to brake recovery strength.
5. The energy recovery method for an electric working machine according to claim 4, wherein outputting an energy recovery control command based on the brake pedal opening degree includes:
receiving a first input of a user under the condition that the brake pedal opening degree is greater than the first opening degree threshold value and less than the second opening degree threshold value;
in response to the first input, obtaining a target recovery intensity;
outputting a coast recovery instruction based on the target recovery intensity.
6. The method of claim 5, wherein receiving a first input from a user comprises:
receiving the first input through a recovery intensity adjustment switch having a plurality of gears.
7. An energy recovery device for an electric working machine, comprising:
the first acquisition module is used for acquiring the whole vehicle working condition parameters of the electric operation machine;
the second acquisition module is used for acquiring the opening degree of an accelerator pedal when the working condition parameters of the whole vehicle are in a recovery working condition range;
the third acquisition module is used for acquiring the triggering state of the maximum energy recovery switch under the condition that the opening degree of the accelerator pedal is smaller than a target opening degree threshold value;
the fourth acquisition module is used for acquiring the opening degree of a brake pedal under the condition that the triggering state of the maximum energy recovery switch is closed;
and the output module is used for outputting an energy recovery control instruction based on the opening degree of the brake pedal, and the energy recovery control instruction is used for controlling the energy recovery mechanism to recover energy according to the target recovery intensity.
8. An electric work machine, comprising:
an energy recovery mechanism;
the energy recovery device for an electric working machine according to claim 7, wherein the energy recovery device for an electric working machine is electrically connected to the energy recovery mechanism.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, carries out the steps of the method for energy recovery of an electric working machine according to any one of claims 1 to 6.
10. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for energy recovery of an electric working machine according to any one of claims 1 to 6.
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| US20180244157A1 (en) * | 2015-07-29 | 2018-08-30 | Nissan Motor Co., Ltd. | Control device for electric vehicle and control method for electric vehicle |
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| CN107199893A (en) * | 2017-05-27 | 2017-09-26 | 北京新能源汽车股份有限公司 | Energy recovery method and device |
| CN110877529A (en) * | 2019-10-23 | 2020-03-13 | 河南速达电动汽车科技有限公司 | Pure electric vehicle and energy recovery control method and control system thereof |
| CN112572157A (en) * | 2020-12-28 | 2021-03-30 | 上海锣响汽车集团有限公司 | Control method and control system for braking energy recovery and auxiliary drive |
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