CN112208525B - Hybrid vehicle cruise control method and apparatus - Google Patents
Hybrid vehicle cruise control method and apparatus Download PDFInfo
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- CN112208525B CN112208525B CN201910618225.6A CN201910618225A CN112208525B CN 112208525 B CN112208525 B CN 112208525B CN 201910618225 A CN201910618225 A CN 201910618225A CN 112208525 B CN112208525 B CN 112208525B
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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, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/14—Adaptive cruise control
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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
- B60W20/00—Control systems specially adapted for hybrid vehicles
Abstract
The embodiment of the invention provides a hybrid vehicle cruise control method and device, wherein the method is used for an Engine Control Unit (ECU), and comprises the following steps: receiving a judgment result of a first cruise condition sent by a vehicle control unit (HCU), wherein the judgment result of the first cruise condition is determined by the HCU according to electric drive state information; acquiring traditional power state information; judging whether the vehicle meets the cruise condition or not according to the judgment result of the first cruise condition and the traditional power state information; and if the vehicle meets the cruise condition, sending a cruise activation command to the HCU, wherein the cruise activation command is used for indicating the HCU to control the vehicle to enter a cruise state. The embodiment of the invention comprehensively judges whether the cruise condition is met or not by combining the judgment result of the first cruise condition sent by the HCU based on the control strategy already possessed by the ECU, thereby reducing the development cost of the HCU, improving the utilization rate of the ECU and saving the cost.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobile control, in particular to a hybrid vehicle cruise control method and device.
Background
With the increasing severity of energy shortage, people have stronger and stronger requirements on new energy, and new energy automobiles gradually become key development objects in the automobile industry. Among them, hybrid vehicles have become a trend of new energy vehicles with the advantages of high driving range and low fuel consumption. At present, most Hybrid vehicles are provided with electric power and energy storage driving components on a conventional power assembly of a fuel vehicle, and a Hybrid Combining Unit (HCU) is added on the basis of an Engine Control Unit (ECU) of the conventional fuel vehicle to realize the Control functions (including torque Control, energy management, and the like) of the whole Hybrid vehicle.
The constant-speed cruise control technology is a widely-used automobile driving control technology at present, and after the driving speed is set, a driver can automatically keep the speed of an automobile without stepping on an accelerator pedal, so that the automobile can run at a fixed speed. After the control method is adopted, when the vehicle runs on the expressway for a long time, a driver does not need to pay attention to control the accelerator pedal any more, so that the fatigue is reduced, meanwhile, unnecessary vehicle speed change is reduced, and the fuel economy is improved.
At present, a cruise control method of a hybrid vehicle mainly adopts a control strategy that HCU control is not executed by ECU.
However, the inventors have found that such a control strategy has at least the following technical problems: the cruise function of the traditional fuel vehicle is controlled by the ECU, the ECU control technology is relatively mature, the HCU is required to carry out a large amount of software development when the HCU is used for controlling the cruise of the hybrid vehicle, and the ECU has an idle control strategy, so that the waste of development resources and the increase of cost are caused.
Disclosure of Invention
The embodiment of the invention provides a hybrid vehicle cruise control method and equipment, which are used for solving the problems that when an HCU is used for controlling cruise of a hybrid vehicle, a large amount of software needs to be developed for the HCU, and meanwhile, an ECU (electronic control unit) is idle due to the fact that existing control strategies are idle, development resources are wasted, and cost is increased.
In a first aspect, an embodiment of the present invention provides a hybrid vehicle cruise control method for an engine control unit ECU, including:
receiving a judgment result of a first cruise condition sent by a vehicle control unit (HCU), wherein the judgment result of the first cruise condition is determined by the HCU according to electric drive state information;
acquiring traditional power state information;
judging whether the vehicle meets the cruise condition or not according to the judgment result of the first cruise condition and the traditional power state information;
and if the vehicle meets the cruise condition, sending a cruise activation command to the HCU, wherein the cruise activation command is used for indicating the HCU to control the vehicle to enter a cruise state.
In one possible design, the electric drive status information includes at least:
the method comprises the steps of motor available torque, electric energy storage information, hybrid drive component state information and a driving mode.
In one possible design, the judgment result of the first cruise condition includes satisfaction of the first cruise condition and non-satisfaction of the first cruise condition;
if the available torque of the motor is larger than a torque threshold value, the electric energy of the electric energy storage information is larger than a threshold value, the state information of the hybrid driving component is fault-free, and the driving mode is a non-full-time four-wheel driving mode, the cruising judgment result is that a first cruising condition is met; otherwise, the cruise judgment result is that the first cruise condition is not met.
In one possible design, the legacy power state information includes: vehicle speed state, brake system state and engine state;
accordingly, the judging whether the vehicle meets the cruise condition according to the judgment result of the first cruise condition and the conventional power state information comprises the following steps:
and if the judgment result of the first cruise condition is that the first cruise condition is met, and the vehicle speed state, the brake system state and the engine state are judged to respectively meet the second cruise condition, determining that the vehicle meets the cruise condition.
In one possible design, determining that the vehicle speed state, the brake system state, and the engine state respectively satisfy the second cruise condition includes:
and if the vehicle speed state is that the vehicle speed is in a preset vehicle speed interval, the brake system state is that the brake system has no fault and is in a non-brake state, and the engine state is that the engine function is not limited, determining that the vehicle speed state, the brake system state and the engine state respectively meet a second cruise condition.
In a second aspect, an embodiment of the present invention provides a hybrid vehicle cruise control method, where the method is used for a vehicle control unit HCU, and includes:
acquiring electric drive state information, and determining whether a vehicle meets a first cruise condition according to the electric drive state information;
sending a judgment result of the first cruise condition to an Engine Control Unit (ECU), wherein the judgment result of the first cruise condition is used for instructing the ECU to judge whether the vehicle meets the cruise condition according to the judgment result of the first cruise condition and the acquired traditional power state information;
and receiving a cruise activation command sent by the ECU when the cruise condition is determined to be met, and controlling the vehicle to enter a cruise state according to the cruise activation command.
In one possible design, the electric drive status information includes at least:
the method comprises the steps of motor available torque, electric energy storage information, hybrid drive component state information and a driving mode.
In one possible design, the judgment result of the first cruise condition includes satisfaction of the first cruise condition and non-satisfaction of the first cruise condition;
the determining whether the vehicle satisfies a first cruise condition according to the electric drive state information includes:
if the available torque of the motor is larger than a torque threshold value, the electric energy of the electric energy storage information is larger than a threshold value, the state information of the hybrid driving component is in a non-failure state, and the driving mode is in a non-full-time four-wheel-drive mode, determining that the cruising judgment result meets a first cruising condition; otherwise, determining that the cruise judgment result does not meet the first cruise condition.
In a third aspect, an embodiment of the present invention provides a hybrid vehicle cruise control apparatus including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes the computer-executable instructions stored by the memory to cause the at least one processor to perform the hybrid vehicle cruise control method as set forth in the first aspect and various possible designs of the first aspect or the second aspect and possible designs of the second aspect.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the hybrid vehicle cruise control method according to the first aspect and the various possible designs of the first aspect or the second aspect and the possible designs of the second aspect is implemented.
The method comprises the steps of firstly receiving a judgment result of a first cruise condition sent by an HCU, wherein the judgment result of the first cruise condition is determined by the HCU according to electric drive state information, then judging whether a vehicle meets the cruise condition according to the judgment result of the first cruise condition and acquired traditional power state information, and if so, controlling the vehicle to enter a cruise state by the HCU. In the embodiment, the ECU is used for receiving the judgment result of the first cruise condition sent by the HCU, and the judgment result is combined with the traditional power state information of the ECU to judge whether the cruise condition is met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic architecture diagram of a hybrid vehicle cruise control system provided by an embodiment of the present invention;
fig. 2 is a first flowchart of a hybrid vehicle cruise control method according to an embodiment of the present invention;
fig. 3 is a second flowchart of a hybrid vehicle cruise control method according to an embodiment of the present invention;
fig. 4 is a third schematic flowchart of a hybrid vehicle cruise control method according to an embodiment of the present invention;
fig. 5 is a first schematic structural diagram of a hybrid vehicle cruise control apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram ii of a hybrid vehicle cruise control apparatus according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware configuration of a hybrid vehicle cruise control apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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.
Explanation of technical terms
Cruise at constant speed: the automobile driving control technology is that after the driving speed is set, the driver can make the automobile maintain the speed automatically without stepping on the accelerator pedal, so that the automobile can run at a fixed speed.
Fig. 1 is a schematic architecture diagram of a hybrid vehicle cruise control system according to an embodiment of the present invention. As shown in fig. 1, the system provided in this embodiment includes an Engine Control Unit (ECU) 101 and a vehicle Control Unit (HCU) 102, where the ECU is a Control Unit for controlling the vehicle operation in a conventional fuel vehicle, and the HCU is a Control Unit for controlling an electric drive system in a Hybrid vehicle.
Fig. 2 is a schematic flow chart of a hybrid vehicle cruise control method according to an embodiment of the present invention, where an execution subject of the embodiment may be an engine control unit ECU in the embodiment shown in fig. 1, and the embodiment is not particularly limited herein. As shown in fig. 2, the method includes:
s201, receiving a judgment result of a first cruise condition sent by the vehicle control unit HCU, wherein the judgment result of the first cruise condition is determined by the HCU according to the electric drive state information.
In this embodiment, the electric drive state information includes at least: the method comprises the steps of motor available torque, electric energy storage information, hybrid drive component state information and a driving mode. It should be noted that: the electric drive state information may also include other information according to actual requirements, and the embodiment of the present invention is not limited in any way.
Specifically, the judgment result of the first cruise condition comprises that the first cruise condition is met and the first cruise condition is not met; if the available torque of the motor is larger than a torque threshold value, the electric energy of the electric energy storage information is larger than a threshold value, the state information of the hybrid driving component is in a non-failure state, and the driving mode is in a non-full-time four-wheel-drive mode, the cruising judgment result is that a first cruising condition is met; otherwise, the cruise judgment result is that the first cruise condition is not met.
Wherein, the electric energy of the electric energy storage information being greater than the threshold value may include: the discharging power Of the battery is greater than the power threshold, and the remaining capacity (State Of Charge, abbreviated as SOC) Of the battery is greater than the capacity threshold.
Wherein, the state information of the hybrid drive component being fault-free may include: the battery has no fault, the motor has no fault, the bridge reduction box has no fault, and the direct current DC/DC converter has no fault.
It should be noted that parameters such as the torque threshold, the power threshold, the electric quantity threshold and the like mentioned in the embodiment of the present invention may be calibrated according to actual situations, and the embodiment is not particularly limited herein.
And S202, acquiring traditional power state information.
In the present embodiment, the conventional power state information may include a vehicle speed state, a brake system state, and an engine state.
Specifically, the vehicle speed state can be acquired by collecting wheel rotation speed parameters and the like, the brake system state can be acquired by collecting brake system parameters, and the engine state can be acquired by collecting working parameters of the engine.
And S203, judging whether the vehicle meets the cruise condition or not according to the judgment result of the first cruise condition and the conventional power state information.
Specifically, it may be determined whether the vehicle satisfies the cruise condition based on whether the determination result of the first cruise condition satisfies the first cruise condition, and whether the speed state, the brake system state, and the engine state satisfy the second cruise condition.
And S204, if the vehicle meets the cruise condition, sending a cruise activation command to the HCU, wherein the cruise activation command is used for indicating the HCU to control the vehicle to enter a cruise state.
In the present embodiment, the HCU controlling the vehicle to enter the cruise state according to the cruise activation command includes: the HCU brings the vehicle into a cruise state by controlling the engine torque and the motor torque to a preset cruise torque.
As can be seen from the above description, the HCU first receives the judgment result of the first cruise condition sent by the HCU, where the judgment result of the first cruise condition is determined by the HCU according to the electric drive state information, and then judges whether the vehicle meets the cruise condition according to the judgment result of the first cruise condition and the acquired conventional power state information, and if so, the HCU controls the vehicle to enter the cruise state. In the embodiment, the ECU is used for receiving the judgment result of the first cruise condition sent by the HCU, and the judgment result is combined with the traditional power state information of the ECU to judge whether the cruise condition is met.
Fig. 3 is a flowchart illustrating a hybrid vehicle cruise control method according to an embodiment of the present invention. In this embodiment, on the basis of the embodiment shown in fig. 2, the embodiment describes in detail the specific implementation process of step S203, where the conventional power state information includes: vehicle speed state, brake system state, and engine state. As shown in fig. 3, the method includes:
s301, receiving a judgment result of a first cruise condition sent by the vehicle control unit HCU, wherein the judgment result of the first cruise condition is determined by the HCU according to the electric drive state information.
In this embodiment, the determination result of the first cruise condition may be determined by the HCU, the motor available torque, the electric power storage information, the hybrid drive component state information, and the driving mode.
And S302, acquiring a traditional power vehicle speed state, a brake system state and an engine state.
In the present embodiment, the conventional power state information may include a vehicle speed state, a brake system state, and an engine state.
Specifically, the vehicle speed state can be acquired by collecting wheel rotation speed parameters and the like, the brake system state can be acquired by collecting brake system parameters, and the engine state can be acquired by collecting working parameters of the engine.
And S303, if the judgment result of the first cruise condition is that the first cruise condition is met, and the vehicle speed state, the brake system state and the engine state are judged to respectively meet the second cruise condition, determining that the vehicle meets the cruise condition.
Specifically, determining that the vehicle speed state, the brake system state, and the engine state satisfy the second cruise condition, respectively, includes:
and if the vehicle speed state is that the vehicle speed is in a preset vehicle speed interval, the brake system state is that the brake system has no fault and is in a non-brake state, and the engine state is that the engine function is not limited, determining that the vehicle speed state, the brake system state and the engine state respectively meet a second cruise condition.
The vehicle speed can be between 40km/h and 180km/h within the preset vehicle speed interval so as to ensure the driving safety.
The failure-free brake system means that the brake system works normally and has no failure prompt; the no-braking state refers to a state in which a brake pedal of the brake system is not depressed.
Wherein the engine function is not limited means that no malfunction of the engine occurs.
For example, if the vehicle speed is 50km/h, the brake system is not in fault and is in a state without braking, and the engine is not functionally limited, it is determined that the vehicle speed state, the brake system state and the engine state respectively satisfy the second cruise condition.
S304: and if the vehicle meets the cruise condition, sending a cruise activation command to the HCU, wherein the cruise activation command is used for indicating the HCU to control the vehicle to enter a cruise state.
In this embodiment, the content of step S304 is the same as the content of step S204, and for the specific description, reference is made to the related description of step S204, which is not repeated herein.
From the above description, by determining that the vehicle speed state, the brake system state and the engine state respectively satisfy the second cruise condition, the accuracy of cruise condition determination is improved, and the safety of cruise driving is ensured.
Fig. 4 is a third schematic flow chart of a hybrid vehicle cruise control method according to an embodiment of the present invention, where an execution main body of the embodiment may be the vehicle control unit HCU in the embodiment shown in fig. 1, and the embodiment is not limited in particular here. As shown in fig. 4, the method includes:
s401, acquiring electric drive state information, and determining whether the vehicle meets a first cruise condition according to the electric drive state information.
S402, sending a judgment result of the first cruise condition to an Engine Control Unit (ECU), wherein the judgment result of the first cruise condition is used for instructing the ECU to judge whether the vehicle meets the cruise condition according to the judgment result of the first cruise condition and the acquired traditional power state information.
And S403, receiving a cruise activation instruction sent by the ECU when the cruise condition is determined to be met, and controlling the vehicle to enter a cruise state according to the cruise activation instruction.
As can be seen from the above description, the determination result of the first cruise condition is determined according to the electric drive state information, and then the determination result of the first cruise condition is sent to the ECU, and the ECU determines whether the vehicle meets the cruise condition according to the determination result of the first cruise condition and the acquired conventional power state information, and if so, controls the vehicle to enter the cruise state. In the embodiment, the judgment result of the first cruise condition is sent to the ECU, and the traditional power state information of the ECU is combined to judge whether the cruise condition is met, so that excessive judgment steps are not required to be executed by the HCU, a large amount of software development is not required to be carried out on the HCU, and on the basis of the control strategy of the ECU, the judgment result of the first cruise condition sent by the HCU is combined to comprehensively judge whether the cruise condition is met, so that the development cost of the HCU can be reduced, the utilization rate of the ECU is improved, and the cost is saved.
In one embodiment of the present invention, the electric drive state information includes at least:
the method comprises the steps of motor available torque, electric energy storage information, hybrid drive component state information and a driving mode.
In one embodiment of the invention, the judgment result of the first cruise condition includes satisfaction of the first cruise condition and non-satisfaction of the first cruise condition;
the determining whether the vehicle satisfies a first cruise condition according to the electric drive state information includes:
if the available torque of the motor is larger than a torque threshold value, the electric energy of the electric energy storage information is larger than a threshold value, the state information of the hybrid driving component is in a non-failure state, and the driving mode is in a non-full-time four-wheel-drive mode, determining that the cruising judgment result meets a first cruising condition; otherwise, determining that the cruise judgment result does not meet the first cruise condition.
Fig. 5 is a schematic structural diagram of a hybrid vehicle cruise control apparatus according to an embodiment of the present invention, corresponding to the hybrid vehicle cruise control method described above. As shown in fig. 5, the hybrid vehicle cruise control apparatus 50 includes:
a receiving module 501, configured to receive a determination result of a first cruise condition sent by a vehicle control unit HCU, where the determination result of the first cruise condition is determined by the HCU according to electric drive state information;
a conventional power state information acquisition module 502 for acquiring conventional power state information;
a judging module 503, configured to judge whether the vehicle meets the cruise condition according to the judgment result of the first cruise condition and the conventional power state information;
a cruise command sending module 504, configured to send a cruise activation command to the HCU if the vehicle meets a cruise condition, where the cruise activation command is used to instruct the HCU to control the vehicle to enter a cruise state.
In one embodiment of the present invention, the electric drive state information includes at least:
the method comprises the steps of motor available torque, electric energy storage information, hybrid drive component state information and a driving mode.
In one embodiment of the invention, the judgment result of the first cruise condition includes satisfaction of the first cruise condition and non-satisfaction of the first cruise condition;
if the available torque of the motor is larger than a torque threshold value, the electric energy of the electric energy storage information is larger than a threshold value, the state information of the hybrid driving component is fault-free, and the driving mode is a non-full-time four-wheel driving mode, the cruising judgment result is that a first cruising condition is met; otherwise, the cruise judgment result is that the first cruise condition is not met.
In one embodiment of the present invention, the conventional power state information includes: vehicle speed state, brake system state and engine state;
the determining module 503 is specifically configured to determine that the vehicle meets the cruise condition if the determination result of the first cruise condition is that the first cruise condition is met, and it is determined that the vehicle speed state, the brake system state, and the engine state respectively meet the second cruise condition.
In an embodiment of the present invention, the determining module 503 is specifically configured to determine that the vehicle speed state, the brake system state and the engine state respectively satisfy the second cruise condition if the vehicle speed state is that the vehicle speed is in a preset vehicle speed interval, the brake system state is that the brake system is not in a fault state and is in a no-brake state, and the engine state is that the engine function is not limited.
The device provided in this embodiment may be used to implement the technical solution of the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 6 is a schematic structural diagram of a hybrid vehicle cruise control apparatus according to an embodiment of the present invention, which corresponds to the hybrid vehicle cruise control method described above. As shown in fig. 6, the hybrid vehicle cruise control apparatus 60 includes:
the electric drive state information obtaining module 601 is configured to obtain electric drive state information, and determine whether the vehicle meets a first cruise condition according to the electric drive state information.
The determination result sending module 602 is configured to send a determination result of the first cruise condition to the engine control unit ECU, where the determination result of the first cruise condition is used to instruct the ECU to determine whether the vehicle meets the cruise condition according to the determination result of the first cruise condition and the acquired conventional power state information.
And the cruise control module 603 is used for receiving a cruise activation command sent by the ECU when the cruise condition is determined to be met, and controlling the vehicle to enter a cruise state according to the cruise activation command.
In one embodiment of the invention, the judgment result of the first cruise condition includes satisfaction of the first cruise condition and non-satisfaction of the first cruise condition;
the determination result sending module 602 is specifically configured to determine that the cruise determination result meets the first cruise condition if the available torque of the motor is greater than the torque threshold, the electric energy of the electric energy storage information is greater than the threshold, the hybrid drive component state information is failure-free, and the driving mode is the non-full-time four-wheel drive mode; otherwise, determining that the cruise judgment result does not meet the first cruise condition.
The device provided in this embodiment may be used to implement the technical solution of the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
Fig. 7 is a schematic diagram of a hardware configuration of a hybrid vehicle cruise control apparatus according to an embodiment of the present invention. As shown in fig. 7, the hybrid vehicle cruise control apparatus 70 of the present embodiment includes: a processor 701 and a memory 702; wherein
A memory 702 for storing computer-executable instructions;
the processor 701 is configured to execute the computer-executable instructions stored in the memory to implement the steps performed by the engine control unit ECU or the vehicle control unit HCU in the above embodiments. Reference may be made in particular to the description relating to the method embodiments described above.
Alternatively, the memory 702 may be separate or integrated with the processor 701.
When the memory 702 is provided separately, the hybrid vehicle cruise control apparatus further includes a bus 703 for connecting the memory 702 and the processor 701.
The embodiment of the invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when a processor executes the computer-executable instructions, the hybrid vehicle cruise control method is realized.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules 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.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A hybrid vehicle cruise control method, characterized in that it is used in an engine control unit ECU, comprising:
receiving a judgment result of a first cruise condition sent by a vehicle control unit (HCU), wherein the judgment result of the first cruise condition is determined by the HCU according to electric drive state information; the electric drive state information includes at least: the method comprises the following steps of (1) enabling torque, electric energy storage information, hybrid drive component state information and a driving mode of a motor to be available;
acquiring traditional power state information;
judging whether the vehicle meets the cruise condition or not according to the judgment result of the first cruise condition and the traditional power state information; the conventional power state information includes: vehicle speed state, brake system state and engine state;
and if the vehicle meets the cruise condition, sending a cruise activation command to the HCU, wherein the cruise activation command is used for indicating the HCU to control the vehicle to enter a cruise state.
2. The method according to claim 1, characterized in that the determination of the first cruise condition comprises satisfaction of the first cruise condition and non-satisfaction of the first cruise condition;
if the available torque of the motor is larger than a torque threshold value, the electric energy of the electric energy storage information is larger than a threshold value, the state information of the hybrid driving component is fault-free, and the driving mode is a non-full-time four-wheel driving mode, the cruising judgment result is that a first cruising condition is met; otherwise, the cruise judgment result is that the first cruise condition is not met.
3. The method according to claim 1 or 2, wherein the determining whether the vehicle satisfies the cruise condition based on the determination result of the first cruise condition and the conventional power state information includes:
and if the judgment result of the first cruise condition is that the first cruise condition is met, and the vehicle speed state, the brake system state and the engine state are judged to respectively meet the second cruise condition, determining that the vehicle meets the cruise condition.
4. The method of claim 3, wherein determining that the vehicle speed state, the brake system state, and the engine state each satisfy the second cruise condition comprises:
and if the vehicle speed state is that the vehicle speed is in a preset vehicle speed interval, the brake system state is that the brake system has no fault and is in a non-brake state, and the engine state is that the engine function is not limited, determining that the vehicle speed state, the brake system state and the engine state respectively meet a second cruise condition.
5. A hybrid vehicle cruise control method for a vehicle control unit HCU, comprising:
acquiring electric drive state information, and determining whether a vehicle meets a first cruise condition according to the electric drive state information; the electric drive state information includes at least: the method comprises the following steps of (1) enabling torque, electric energy storage information, hybrid drive component state information and a driving mode of a motor to be available;
sending a judgment result of the first cruise condition to an Engine Control Unit (ECU), wherein the judgment result of the first cruise condition is used for instructing the ECU to judge whether the vehicle meets the cruise condition according to the judgment result of the first cruise condition and the acquired traditional power state information; the conventional power state information includes: vehicle speed state, brake system state and engine state;
and receiving a cruise activation command sent by the ECU when the cruise condition is determined to be met, and controlling the vehicle to enter a cruise state according to the cruise activation command.
6. The method according to claim 5, characterized in that the determination of the first cruise condition comprises satisfaction of the first cruise condition and non-satisfaction of the first cruise condition;
the determining whether the vehicle satisfies a first cruise condition according to the electric drive state information includes:
if the available torque of the motor is larger than a torque threshold value, the electric energy of the electric energy storage information is larger than a threshold value, the state information of the hybrid driving component is in a non-failure state, and the driving mode is in a non-full-time four-wheel-drive mode, determining that the cruising judgment result meets a first cruising condition; otherwise, determining that the cruise judgment result does not meet the first cruise condition.
7. A hybrid vehicle cruise control apparatus, characterized by comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the hybrid vehicle cruise control method of any of claims 1-4.
8. A hybrid vehicle cruise control apparatus, characterized by comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the hybrid vehicle cruise control method of claim 5 or 6.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored therein computer-executable instructions that, when executed by a processor, implement the hybrid vehicle cruise control method according to any one of claims 1 to 4.
10. A computer-readable storage medium having stored thereon computer-executable instructions that, when executed by a processor, implement the hybrid vehicle cruise control method according to claim 5 or 6.
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