CN108556847A - Energy reclaiming method, device and system - Google Patents
Energy reclaiming method, device and system Download PDFInfo
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- CN108556847A CN108556847A CN201810268284.0A CN201810268284A CN108556847A CN 108556847 A CN108556847 A CN 108556847A CN 201810268284 A CN201810268284 A CN 201810268284A CN 108556847 A CN108556847 A CN 108556847A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 239000003550 marker Substances 0.000 claims abstract description 16
- 230000004913 activation Effects 0.000 claims abstract description 10
- 238000011084 recovery Methods 0.000 claims description 98
- 230000001172 regenerating effect Effects 0.000 abstract 3
- 230000006870 function Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 10
- 230000001960 triggered effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- 230000001133 acceleration Effects 0.000 description 2
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- 238000004590 computer program Methods 0.000 description 2
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- 238000007781 pre-processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
- B60W2555/60—Traffic rules, e.g. speed limits or right of way
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- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
The present invention provides a kind of energy reclaiming method, device and system, are related to automobile technical field, and this method includes：Traffic mark information in monitoring current vehicle travel direction in real time；Calculate the relative information of marker and current vehicle that traffic mark information includes；Judge relative information whether within the scope of pre-set secure threshold；If so, sending stopping signal to engine system, triggering current vehicle enters sliding state；If not, brake signal is sent to braking system, and, activation signal is sent to energy-recuperation system, makes current vehicle is lower in the braking state to carry out energy regenerating.Energy reclaiming method provided by the invention, device and system; it can realize that deceleration and braking to hybrid vehicle carry out the intervention control of active; it rationally triggers and controls the shutdown of hybrid power system vehicle motor and slide and braking energy recovering function; and then realize best fuel-economizing and energy regenerating effect, improve the efficiency of energy regenerating.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an energy recovery method, device and system.
Background
With the increasing popularity of hybrid electric vehicles, the quantity of hybrid electric vehicles is increasing, and the energy saving and endurance problems of hybrid electric vehicles have been greatly emphasized by the automobile engineering world at home and abroad. In order to protect the environment and to make reasonable use of resources, it is necessary to reduce the resource consumption of the hybrid vehicle. In general, the cruising ability of a hybrid vehicle can be improved by recovering energy lost when the hybrid vehicle is braked and reusing the recovered energy when the hybrid vehicle is accelerated or ascends a slope.
Generally, for a general hybrid system vehicle, the hybrid system can perform an engine stop coasting and a braking energy recovery function, but the implementation of the energy recovery function of the hybrid system needs to rely on the operation of a driver to trigger the execution. The driving habits of different drivers are greatly different, and the energy recovery function is triggered only by the operation of the driver, so that the oil-saving and emission-reducing effect of the vehicle is difficult to achieve the optimal effect, and the energy recovery efficiency is low.
Disclosure of Invention
In view of the above, the present invention provides an energy recovery method, apparatus and system to alleviate the technical problem of low energy recovery efficiency in the prior art.
In a first aspect, an embodiment of the present invention provides an energy recovery method applied to a vehicle controller of a hybrid power system, including: monitoring traffic identification information in the current vehicle driving direction in real time, wherein the traffic identification information comprises one or more of the following information: traffic signal light identification information, traffic indication sign information, obstacle information, and vehicle information; calculating relative information of a marker contained in the traffic identification information and the current vehicle, wherein the relative information comprises relative distance information and relative speed information; judging whether the relative information is within a preset safety threshold range; if yes, sending a stop signal to an engine system, and triggering the current vehicle to enter a sliding state; if not, a braking signal is sent to the braking system, and an activation signal is sent to the energy recovery system, so that the current vehicle can recover energy in a braking state.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the step of monitoring traffic identification information in the current vehicle driving direction in real time includes: acquiring image information in the current vehicle driving direction according to a preset time interval by a camera; judging whether the image information contains a characteristic value of pre-stored traffic identification information; if so, extracting the traffic identification information.
With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the step of calculating relative information between the identifier included in the traffic identification information and the current vehicle includes: and after the traffic identification information is extracted, detecting the relative information of the marker contained in the traffic identification information and the current vehicle by using a high-speed radar.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the method further includes: in the real-time monitoring energy recovery process, the energy recovery signal of the current vehicle, wherein the energy recovery signal at least comprises: the electric quantity of the battery, the temperature of the battery and a motor temperature signal; and when any signal in the energy recovery signals exceeds a preset signal threshold, stopping the energy recovery process.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where after determining whether the relative information is within a preset safety threshold, the method further includes: broadcasting the message of the judgment result to the driver in a voice broadcasting mode, and displaying the message on a vehicle display; or sending a message of the judgment result to the driver in a voice prompt mode, and displaying the message on a vehicle display.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the method further includes: and monitoring the opening signal of the brake pedal of the current vehicle in real time, and starting an energy recovery process when the opening signal of the brake pedal is monitored and exceeds a preset opening threshold value.
In a second aspect, an embodiment of the present invention further provides an energy recovery device, which is disposed in a vehicle controller of a hybrid power system, and includes: the monitoring module is used for monitoring traffic identification information in the current vehicle driving direction in real time, and the traffic identification information comprises one or more of the following information: traffic signal light identification information, traffic indication sign information, obstacle information, and vehicle information; the calculating module is used for calculating relative information of the marker contained in the traffic identification information and the current vehicle, wherein the relative information comprises relative distance information and relative speed information; the judging module is used for judging whether the relative information is in a preset safety threshold range; the first signal sending module is used for sending a stop signal to the engine system and triggering the current vehicle to enter a sliding state when the judgment result of the judgment module is yes; and the second signal sending module is used for sending a braking signal to the braking system and sending an activation signal to the energy recovery system when the judgment result of the judgment module is negative, so that the current vehicle can recover energy in a braking state.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the apparatus further includes: the energy monitoring module is used for monitoring energy recovery signals of a current vehicle in the energy recovery process in real time, wherein the energy recovery signals at least comprise: the electric quantity of the battery, the temperature of the battery and a motor temperature signal; and the stopping module is used for stopping the energy recovery process when any signal in the energy recovery signals exceeds a preset signal threshold.
With reference to the second aspect, an embodiment of the present invention provides a second possible implementation manner of the second aspect, where the apparatus further includes: the pedal monitoring module is used for monitoring the brake pedal opening signal of the current vehicle in real time, and starting the energy recovery process when the brake pedal opening signal is monitored and exceeds a preset opening threshold value.
In a third aspect, an embodiment of the present invention further provides an energy recovery system, where the system includes a memory and a processor, the memory is used to store a program that supports the processor to execute the method described in the first aspect, and the processor is configured to execute the program stored in the memory.
In a fourth aspect, an embodiment of the present invention further provides a computer storage medium for storing computer software instructions for the apparatus in the second aspect.
The embodiment of the invention has the following beneficial effects:
the energy recovery method, the device and the system provided by the embodiment of the invention can monitor the traffic identification information in the current vehicle running direction in real time, calculate the relative information between the marker contained in the traffic identification information and the current vehicle, and send a stop signal to an engine system to trigger the current vehicle to enter a sliding state when the relative information is within a preset safety threshold range; when the relative information is not within the preset safety threshold range, a braking signal is sent to the braking system, and an activation signal is sent to the energy recovery system, so that the current vehicle can recover energy in a braking state, further the active intervention control on the deceleration and braking of the hybrid power vehicle is realized, the functions of stopping the engine, sliding and recovering the braking energy of the vehicle in the hybrid power system are reasonably triggered and controlled, further the optimal oil-saving and energy recovery effects are realized, and the energy recovery efficiency is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in 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 other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a method for energy recovery according to an embodiment of the present invention;
FIG. 2 is a flow chart of another energy recovery method provided by an embodiment of the invention;
fig. 3 is a schematic structural diagram of an energy recovery device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another energy recovery device according to an embodiment of the present invention;
fig. 5 is a block diagram of an energy recovery system according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments 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 apparent 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 braking energy recovery function is that when a driver steps on a braking pedal and the vehicle braking demand is met, the hybrid power system motor converts the braking energy of the vehicle into electric energy to be stored in the hybrid power system battery. The part of stored electric quantity can be used for assisting the acceleration of the motor when the vehicle accelerates next time, provides part of torque from the motor for the vehicle, assists the acceleration of the engine, and also realizes the effects of energy conservation and emission reduction.
In the prior art, the realization of the functions of stopping the engine and sliding and recovering the braking energy of the hybrid power system needs to be triggered and executed by the operations of releasing an accelerator pedal and stepping on a brake pedal of a driver. The driving habits of different drivers are greatly different, the functions of stopping the engine for sliding and recovering the braking energy are triggered only by the operation of the drivers, and the oil-saving and emission-reducing effects of the vehicle are difficult to achieve the optimal effect.
Based on the above, the energy recovery method, the device and the system provided by the embodiment of the invention can realize the optimal oil saving and energy recovery effects.
For the convenience of understanding the present embodiment, a detailed description will be given of an energy recovery method disclosed in the present embodiment.
The first embodiment is as follows:
the embodiment of the invention provides an energy recovery method, which can be applied to a vehicle controller of a hybrid power system, such as a vehicle controller of a 48V light hybrid system. A flow chart of an energy recovery method as shown in fig. 1, comprising the steps of:
step S102, monitoring traffic identification information in the current vehicle driving direction in real time;
wherein the traffic identification information comprises one or more of the following information: traffic signal light identification information, traffic indication sign information, obstacle information, and vehicle information;
step S104, calculating the relative information between the marker contained in the traffic identification information and the current vehicle;
wherein the relative information includes relative distance information and relative speed information;
step S106, judging whether the relative information is in a preset safety threshold range;
step S108, if yes, a stop signal is sent to an engine system, and the current vehicle is triggered to enter a sliding state;
at this time, the distance between the current vehicle and the marker is larger than the safety threshold value of vehicle braking, so that the current vehicle does not need to be braked and only needs to slide.
And step S110, if not, sending a braking signal to the braking system, and sending an activation signal to the energy recovery system to enable the current vehicle to recover energy in a braking state.
At the moment, the distance between the current vehicle and the marker is smaller than the safety threshold value of vehicle braking, if the vehicle controller does not detect a signal that a driver steps on a brake pedal at the moment, a braking signal can be sent to a braking system to perform active intervention control on deceleration and braking of the vehicle, the functions of stopping, sliding and energy recovery of a vehicle engine of the hybrid power system are reasonably triggered and controlled, and the optimal oil-saving and capacity recovery effects are achieved.
In specific implementation, a vehicle of the hybrid power system can be provided with a high-speed radar and a high-definition camera so as to realize a monitoring process of traffic identification information. Meanwhile, in order to improve monitoring efficiency and monitoring precision, the detection direction of the high-speed radar and the acquisition visual angle of the camera are consistent with the current vehicle running direction, so that traffic identification information can be monitored in real time. Therefore, another energy recovery method is also provided in the embodiments of the present invention, such as a flow chart of another energy recovery method shown in fig. 2, which includes the following steps:
step S202, acquiring image information in the current vehicle driving direction through a camera according to a preset time interval;
step S204, judging whether the image information contains the characteristic value of the pre-stored traffic identification information; if yes, executing step S206, if no, returning to step S202;
the camera can be a high-definition camera, collects image information in the current vehicle driving direction, and transmits the image information to the vehicle controller. In a specific implementation, the vehicle controller stores a program or algorithm for identifying image feature values in advance, and the program or algorithm is used for identifying the feature values of the image information.
Considering that the traffic identification information includes one or more of traffic signal light identification information, traffic indication sign information, obstacle information, and vehicle information, the vehicle controller may pre-store a characteristic value of a signal light, and the characteristic value extraction algorithm may further include an extraction and comparison algorithm of a color characteristic value to facilitate identification and distinction of signal lights of different colors in order to facilitate distinction of different signal lights. Further, the traffic sign information may further include: the traffic identification system comprises identifications such as speed limit, curved roads, slopes and servers, wherein characteristic values of the identifications can be stored in a vehicle controller in advance, and after image information is collected by a camera, similarity comparison can be carried out on the collected image information and the pre-stored characteristic values, so that whether the image information contains the characteristic values of traffic identification information or not is judged.
Further, in order to facilitate lifting up the feature value, after receiving the image information, the vehicle controller further includes a process of preprocessing the image information, such as denoising processing, filtering processing, and the like, so as to highlight useful information of the image.
The specific processes of image information acquisition, preprocessing and characteristic value extraction can be realized by referring to related data in the prior art, and meanwhile, in order to improve the operation speed of image processing, the vehicle controller can adopt a high-performance processor chip so as to meet the operation process of huge image data volume and improve the operation speed. The embodiment of the present invention is not limited to this specific case.
Step S206, extracting traffic identification information;
step S208, after the traffic identification information is extracted, the relative information between the marker contained in the traffic identification information and the current vehicle is detected through the high-speed radar;
generally, the high-speed radar is provided at a roof position of the vehicle, and a detection area of the high-speed radar coincides with a vehicle traveling direction. After extracting the traffic identification information, the vehicle controller may transmit a trigger signal to the high-speed radar, cause the high-speed radar to emit an ultrasonic wave of a known frequency, measure the frequency of the reflected wave at the same time, and determine the relative distance information and the relative speed information with respect to the marker based on a change in the frequency of the reflected wave. The type selection of the specific high-speed radar and the frequency of the ultrasonic wave can be set according to the actual situation, which is not limited in the embodiment of the invention.
Step S210, judging whether the relative information is in a preset safety threshold range; if yes, go to step S212; if not, go to step S214;
step S212, sending a stop signal to an engine system, and triggering the current vehicle to enter a sliding state;
and step S214, sending a braking signal to the braking system, and sending an activation signal to the energy recovery system to enable the current vehicle to recover energy in a braking state.
By the judgment of the relative information, the driver's next deceleration and braking intention of the vehicle can be calculated and predicted. For example, the vehicle controller judges whether the current vehicle is within the braking safety threshold value range according to the relative distance and the relative speed change between the current vehicle and a front obstacle or between the current vehicle and a vehicle, if not, the vehicle controller can actively intervene in braking, and simultaneously activate the energy recovery system to recover energy; if the vehicle is far away from the front obstacle or the relative distance of the vehicle, the engine is only required to be stopped and slide.
Further, in order to enable the driver to timely know the driving state of the current vehicle, after the step S210 is executed, the method may further include a reminding function, and the specific reminding function may include the following manner: (1) broadcasting the message of the judgment result to the driver in a voice broadcasting mode, and displaying the message on a vehicle display; (2) and sending a message of a judgment result to the driver in a voice prompt mode, and displaying the message on a vehicle display.
Further, considering that the driver will actively perform driving operation after receiving the reminding message, the method further includes: the method comprises the steps of monitoring a brake pedal opening signal of a current vehicle in real time, and starting an energy recovery process when the brake pedal opening signal is monitored and exceeds a preset opening threshold value.
In view of the safety of the vehicle battery, the method further comprises monitoring the energy recovery signal in real time, wherein the energy recovery signal at least comprises: in the real-time monitoring energy recovery process, the energy recovery signal of the current vehicle, wherein the energy recovery signal at least comprises: the electric quantity of the battery, the temperature of the battery and a motor temperature signal; when any signal in the energy recovery signals exceeds a preset signal threshold, the energy recovery process is stopped, the overcharge phenomenon of the vehicle battery or the storage battery is avoided, and the service life of the battery is prolonged.
The energy recovery method provided by the embodiment of the invention can monitor the traffic identification information in the current vehicle running direction in real time, calculate the relative information between the marker contained in the traffic identification information and the current vehicle, and send a stop signal to an engine system to trigger the current vehicle to enter a sliding state when the relative information is within a preset safety threshold range; when the relative information is not within the preset safety threshold range, a braking signal is sent to the braking system, and an activation signal is sent to the energy recovery system, so that the current vehicle can recover energy in a braking state, further the active intervention control on the deceleration and braking of the hybrid power vehicle is realized, the functions of stopping the engine, sliding and recovering the braking energy of the vehicle in the hybrid power system are reasonably triggered and controlled, further the optimal oil-saving and energy recovery effects are realized, and the energy recovery efficiency is improved.
Example two:
on the basis of the first embodiment, the embodiment of the present invention further provides an energy recovery device, which is disposed in a vehicle controller of a hybrid power system, and as shown in fig. 3, the energy recovery device includes:
the monitoring module 30 is configured to monitor traffic identification information in a current vehicle driving direction in real time, where the traffic identification information includes one or more of the following information: traffic signal light identification information, traffic indication sign information, obstacle information, and vehicle information;
a calculating module 32, configured to calculate relative information between the marker included in the traffic identification information and the current vehicle, where the relative information includes relative distance information and relative speed information;
a judging module 34, configured to judge whether the relative information is within a preset safety threshold range;
the first signal sending module 36 is used for sending a stop signal to the engine system and triggering the current vehicle to enter a sliding state when the judgment result of the judgment module is yes;
and the second signal sending module 38 is configured to send a braking signal to the braking system and send an activation signal to the energy recovery system when the determination result of the determining module is negative, so that the current vehicle performs energy recovery in a braking state.
In a specific implementation, the monitoring module 30 is configured to: acquiring image information in the current vehicle driving direction according to a preset time interval by a camera; judging whether the image information contains a characteristic value of pre-stored traffic identification information; if so, extracting the traffic identification information.
Further, the calculating module 32 is configured to: and after the traffic identification information is extracted, detecting the relative information of the marker contained in the traffic identification information and the current vehicle by using a high-speed radar.
Another energy recovery device, as shown in fig. 4, is schematically constructed, and in addition to the structure of fig. 3, the device further includes:
the energy monitoring module 40 is configured to monitor an energy recovery signal of a current vehicle in a real-time energy recovery process, where the energy recovery signal at least includes: the electric quantity of the battery, the temperature of the battery and a motor temperature signal;
and a stopping module 42, configured to stop the energy recovery process when any one of the energy recovery signals exceeds a preset signal threshold.
And the pedal monitoring module 44 is used for monitoring the brake pedal opening signal of the current vehicle in real time, and starting an energy recovery process when the brake pedal opening signal is monitored and exceeds a preset opening threshold value.
The energy recovery device provided by the embodiment of the invention has the same technical characteristics as the energy recovery method provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
An embodiment of the present invention further provides an energy recovery system, which includes a memory and a processor, where the memory is used to store a program that supports the processor to execute the energy recovery method described in the first embodiment, and the processor is configured to execute the program stored in the memory.
Referring to fig. 5, an embodiment of the present invention further provides a block diagram of an energy recovery system, including: the system comprises a processor 500, a memory 501, a bus 502 and a communication interface 503, wherein the processor 500, the communication interface 503 and the memory 501 are connected through the bus 502; the processor 500 is used to execute executable modules, such as computer programs, stored in the memory 501.
The Memory 501 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 503 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used.
Bus 502 can be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 5, but this does not indicate only one bus or one type of bus.
The memory 501 is used for storing a program, and the processor 500 executes the program after receiving an execution instruction, and the method executed by the energy recovery apparatus disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 500, or implemented by the processor 500.
The processor 500 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 500. The Processor 500 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 501, and the processor 500 reads the information in the memory 501, and completes the steps of the method in combination with the hardware thereof.
The computer program product of the energy recovery method, the apparatus, and the system provided in the embodiments of the present invention includes a computer readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiments, and specific implementation may refer to the method embodiments, and will not be described herein again.
In summary, the energy recovery method, the device and the system provided by the embodiments of the present invention replace the triggering condition of the engine stop sliding and the braking energy recovery function of the hybrid system vehicle triggered by the operation of the driver releasing the accelerator pedal and stepping on the brake pedal with the operation of acquiring the road condition information ahead of the vehicle based on the high-speed radar and the camera, predicting the driver's deceleration and braking intention, and calculating the optimal braking energy recovery scheme according to the working conditions of the vehicle, the engine, the motor and the battery. The waste of braking energy and the deterioration of emission level caused by the difference of driving habits of different drivers are avoided, and the oil saving rate and the emission optimization level of the braking energy recovery function of the engine stop slip of the hybrid power system are improved to the maximum extent.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. 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.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that the following embodiments are merely illustrative of the present invention, and not restrictive, and the scope of the present invention is not limited thereto: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An energy recovery method applied to a vehicle controller of a hybrid system, the method comprising:
monitoring traffic identification information in the current vehicle driving direction in real time, wherein the traffic identification information comprises one or more of the following information: traffic signal light identification information, traffic indication sign information, obstacle information, and vehicle information;
calculating relative information of a marker contained in the traffic identification information and the current vehicle, wherein the relative information comprises relative distance information and relative speed information;
judging whether the relative information is in a preset safety threshold range or not;
if yes, sending a stop signal to an engine system, and triggering the current vehicle to enter a sliding state;
if not, sending a braking signal to a braking system, and sending an activation signal to an energy recovery system to enable the current vehicle to recover energy in a braking state.
2. The method of claim 1, wherein the step of monitoring traffic identification information in the current vehicle direction of travel in real time comprises:
acquiring image information in the current vehicle driving direction according to a preset time interval by a camera;
judging whether the image information contains a characteristic value of pre-stored traffic identification information or not;
and if so, extracting the traffic identification information.
3. The method according to claim 2, wherein the step of calculating the relative information of the identifier included in the traffic identification information and the current vehicle includes:
and after the traffic identification information is extracted, detecting the relative information of the marker contained in the traffic identification information and the current vehicle by using a high-speed radar.
4. The method of claim 1, further comprising:
in the real-time monitoring energy recovery process, an energy recovery signal of the current vehicle is monitored, wherein the energy recovery signal at least comprises: the electric quantity of the battery, the temperature of the battery and a motor temperature signal;
and when any signal in the energy recovery signals exceeds a preset signal threshold, stopping the energy recovery process.
5. The method according to claim 1, wherein after determining whether the relative information is within a preset safety threshold, the method further comprises:
broadcasting the message of the judgment result to the driver in a voice broadcasting mode, and displaying the message on a vehicle display; or,
and sending a message of a judgment result to the driver in a voice prompt mode, and displaying the message on the vehicle display.
6. The method of claim 1, further comprising:
and monitoring the opening signal of the brake pedal of the current vehicle in real time, and starting an energy recovery process when the opening signal of the brake pedal is monitored and exceeds a preset opening threshold value.
7. An energy recovery device provided to a vehicle controller of a hybrid system, the device comprising:
the monitoring module is used for monitoring traffic identification information in the current vehicle driving direction in real time, wherein the traffic identification information comprises one or more of the following information: traffic signal light identification information, traffic indication sign information, obstacle information, and vehicle information;
the calculating module is used for calculating relative information of the marker contained in the traffic identification information and the current vehicle, wherein the relative information comprises relative distance information and relative speed information;
the judging module is used for judging whether the relative information is in a preset safety threshold range or not;
the first signal sending module is used for sending a stop signal to an engine system and triggering the current vehicle to enter a sliding state when the judgment result of the judgment module is yes;
and the second signal sending module is used for sending a braking signal to a braking system and sending an activation signal to an energy recovery system when the judgment result of the judgment module is negative, so that the current vehicle can recover energy in a braking state.
8. The apparatus of claim 7, further comprising:
the energy monitoring module is used for monitoring an energy recovery signal of the current vehicle in the energy recovery process in real time, wherein the energy recovery signal at least comprises: the electric quantity of the battery, the temperature of the battery and a motor temperature signal;
and the stopping module is used for stopping the energy recovery process when any signal in the energy recovery signals exceeds a preset signal threshold.
9. The apparatus of claim 7, further comprising:
the pedal monitoring module is used for monitoring the brake pedal opening degree signal of the current vehicle in real time, and starting an energy recovery process when the brake pedal opening degree signal is monitored and exceeds a preset opening degree threshold value.
10. An energy recovery system, characterized in that the system comprises a memory for storing a program enabling a processor to perform the method of any of claims 1 to 6 and a processor configured for executing the program stored in the memory.
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