CN111942176A - Vehicle control method, vehicle-mounted terminal and vehicle - Google Patents
Vehicle control method, vehicle-mounted terminal and vehicle Download PDFInfo
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- CN111942176A CN111942176A CN202010841655.7A CN202010841655A CN111942176A CN 111942176 A CN111942176 A CN 111942176A CN 202010841655 A CN202010841655 A CN 202010841655A CN 111942176 A CN111942176 A CN 111942176A
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
- B60L15/2018—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking for braking on a slope
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2072—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off
- B60L15/2081—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off for drive off on a slope
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/48—Drive Train control parameters related to transmissions
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/64—Road conditions
- B60L2240/642—Slope of road
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a vehicle control method, a vehicle-mounted terminal and a vehicle. The control method of the vehicle includes: under the condition that the vehicle is in a sliding feedback working condition, acquiring the speed, the ramp value and the gear of the vehicle; and executing the slope slipping prevention operation of the vehicle under the conditions that the vehicle speed of the vehicle is not greater than the preset speed, the slope value is greater than the preset value and the gear is a forward gear. According to the control method of the vehicle, under the sliding feedback working condition, the vehicle speed, the ramp value and the gear of the vehicle are collected, and when the vehicle speed, the ramp value and the gear of the vehicle meet certain conditions, the slope slipping prevention operation of the vehicle is executed, so that the vehicle is kept static when the sliding recovery end is finished, the potential safety hazard that the vehicle slips down the slope is avoided, and the driving safety is ensured.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a vehicle control method, a vehicle-mounted terminal and a vehicle.
Background
In the related technology, when a driver drives a vehicle normally to loosen an electric door pedal and does not step on a brake, a power system of the vehicle drives a motor to rotate reversely by using the inertia speed of the vehicle, so that energy recovery and utilization are realized to increase the endurance of the vehicle. However, when such energy recovery is performed, the vehicle speed gradually decreases during the deceleration of the vehicle, and when the vehicle slides to an uphill road section, since the power system performs energy recovery by using the inertia deceleration of the vehicle and does not provide power (no idle torque output), the vehicle slides to a standstill and then directly slips off the slope.
Disclosure of Invention
The embodiment of the invention provides a vehicle control method, a vehicle-mounted terminal and a vehicle.
A vehicle control method according to an embodiment of the present invention includes:
under the condition that the vehicle is in a sliding feedback working condition, acquiring the speed, the ramp value and the gear of the vehicle;
and executing the slope slipping prevention operation of the vehicle under the conditions that the vehicle speed of the vehicle is not greater than a preset speed, the slope value is greater than a preset value and the gear is a forward gear.
In certain embodiments, the control method comprises:
and in the running process of the vehicle, when the fact that an electric door pedal and a brake pedal of the vehicle are released is detected, the vehicle is controlled to enter a sliding feedback working condition.
In certain embodiments, the performing the hill-fall prevention operation of the vehicle includes:
and stopping the coasting feedback condition and controlling a power system of the vehicle to provide power output.
In certain embodiments, the control method comprises:
and controlling the power system to provide power output according to the ramp value.
In certain embodiments, the performing the hill-fall prevention operation of the vehicle includes:
an electronic stability control system that controls the vehicle is automatically boosted to provide an auxiliary braking force to hold the vehicle stationary.
In certain embodiments, the control method comprises:
and after detecting that an electric door pedal of the vehicle is pressed down and the power output by a power system of the vehicle is enough to support the current hill start, controlling the electronic stability control system to release the braking force so as to start the vehicle.
In certain embodiments, the performing the hill-fall prevention operation of the vehicle includes:
and controlling an electronic parking brake system of the vehicle to execute parking assistance to keep the vehicle stationary in the case of receiving the electronic parking request.
In certain embodiments, the control method comprises:
and after detecting that an electric door pedal of the vehicle is pressed down and the power output by a power system of the vehicle is enough to support the current hill start, controlling the electronic parking brake system to release parking to start the vehicle.
The vehicle-mounted terminal of the embodiment of the invention comprises:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the speed, the ramp value and the gear of a vehicle under the condition that the vehicle is in a sliding feedback working condition;
and the execution module is used for executing the slope slipping prevention operation of the vehicle under the conditions that the vehicle speed of the vehicle is not greater than a preset speed, the slope value is greater than a preset value and the gear is a forward gear.
The vehicle of the embodiment of the invention includes the vehicle-mounted terminal of the above embodiment.
According to the vehicle control method, the vehicle-mounted terminal and the vehicle, under the sliding feedback working condition, the vehicle speed, the ramp value and the gear of the vehicle are collected, and when the vehicle speed, the ramp value and the gear of the vehicle meet certain conditions, the vehicle is executed to prevent the vehicle from sliding down the slope, the vehicle is kept still when the sliding recovery end is finished, the potential safety hazard that the vehicle slides down the slope is avoided, and the driving safety is guaranteed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a control method of a vehicle according to an embodiment of the present invention;
fig. 2 is another flowchart illustrating a control method of a vehicle according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of a vehicle according to an embodiment of the present invention;
fig. 4 is a diagram showing another example of a flow of a control method of a vehicle according to an embodiment of the invention;
fig. 5 is a diagram showing still another example of a flow of a control method of a vehicle according to an embodiment of the invention;
FIG. 6 is a block diagram of an in-vehicle terminal according to an embodiment of the present invention;
fig. 7 is a scene schematic diagram of a vehicle according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to fig. 1, a control method of a vehicle according to an embodiment of the present invention includes:
step S12: under the condition that the vehicle is in a sliding feedback working condition, acquiring the speed, the ramp value and the gear of the vehicle;
step S14: and executing the slope slipping prevention operation of the vehicle under the conditions that the vehicle speed of the vehicle is not greater than the preset speed, the slope value is greater than the preset value and the gear is a forward gear.
According to the control method of the vehicle, under the sliding feedback working condition, the vehicle speed, the ramp value and the gear of the vehicle are collected, and when the vehicle speed, the ramp value and the gear of the vehicle meet certain conditions, the slope slipping prevention operation of the vehicle is executed, so that the vehicle is kept static when the sliding recovery end is finished, the potential safety hazard that the vehicle slips down the slope is avoided, and the driving safety is ensured.
In the sliding feedback technology of the related art, it can be understood that when a driver looses an electric door pedal during driving of a vehicle, the vehicle does not need to accelerate forward and brake, and a power system drives a motor to rotate reversely by using the sliding inertia of the vehicle, so as to perform energy recovery and utilization to increase the endurance. Typically, maximum energy recovery is achieved at the end of the coasting maneuver when the vehicle speed is reduced to zero, i.e., the vehicle remains stationary. Since the powertrain does not provide power while performing energy recovery, if the vehicle is coasting to an uphill section during the performance of energy recovery, the vehicle cannot remain stationary on a hill at the end of the coasting feedback, and coasting in the opposite direction to the gear occurs.
That is, in the related art, energy recovery is performed by a coasting feedback technique, and a situation that a vehicle travels on a horizontal road section is generally considered, and a situation that the vehicle travels on a slope is not considered, so that when energy recovery is performed on an uphill road section, there is a safety problem that the vehicle directly slips down after coasting to a standstill, and further, potential safety hazards are brought to driving safety.
The control method of the vehicle of the embodiment of the invention collects the vehicle driving data under the sliding feedback working condition, executes the operation of preventing the vehicle from sliding down the slope according to the vehicle driving data, ensures that the vehicle is kept static when the sliding feedback end is finished, not only can realize the maximum energy recovery, but also can ensure the driving safety.
Specifically, the vehicle speed of the vehicle can be measured by a wheel speed sensor or a vehicle speed sensor, the ramp value can be measured by a ramp sensor, and the gear can be measured by a gear sensor. The preset speed can be a fixed value, and can also be a variable value set according to different ramp values. After the vehicle executes the sliding feedback program, the vehicle enters a sliding stage, the vehicle speed is gradually reduced, the vehicle speed, the ramp value and the gear of the vehicle in the sliding process are detected in real time, the relation between the vehicle speed and the preset speed, the relation between the ramp value and the preset value and whether the gear is a forward gear are judged, and under the condition that the vehicle speed, the ramp value and the gear of the vehicle meet preset conditions at the same time, the vehicle is executed to perform the slope slipping prevention operation, so that the vehicle can be still on a ramp or output power to start climbing at the end of sliding feedback on an uphill road section, and the vehicle is prevented from slipping. And slipping on a slope, namely, the vehicle runs along a track opposite to the gear in normal running of the vehicle on the slope.
Referring to fig. 2, in some embodiments, the control method includes:
step S11: and in the running process of the vehicle, when the release of an electric door pedal and a brake pedal of the vehicle is detected, the vehicle is controlled to enter a sliding feedback working condition.
Therefore, the motor can be driven to rotate reversely by the inertia speed of the vehicle under the condition that the vehicle does not have power output, the energy in the sliding process is recovered, and the cruising ability of the vehicle is improved. Specifically, the electric door depth travel sensor can acquire an electric door depth value, the brake depth travel sensor can acquire a brake depth value, and whether an electric door pedal and a brake pedal of the vehicle are loosened can be detected according to the electric door depth value and the brake depth value.
In one example, in the driving process of the vehicle, the detected electric door depth value and the detected brake depth value are both zero, namely the electric door pedal is released, the brake pedal is not stepped, the vehicle enters a sliding feedback working condition, and energy recovery is executed.
In certain embodiments, performing a hill-fall prevention operation of a vehicle includes: and stopping the coasting feedback working condition and controlling a power system of the vehicle to provide power output.
Therefore, the vehicle can stop energy recovery and continue to move forward in the same direction of the gear, and the vehicle is prevented from sliding down a slope. Specifically, the vehicle is in a sliding feedback working condition, and under the conditions that the speed of the vehicle is equal to a preset speed, the ramp value is greater than a preset value and the gear is a forward gear, the sliding feedback working condition is stopped, energy recovery is stopped, and a power system of the vehicle is controlled to provide power output.
Referring to fig. 3, in an example, the preset speed is 5kph, the preset value is 0 °, the vehicle speed of the vehicle under the sliding feedback condition is 5kph, the ramp value is 15 °, the gear is a forward gear, and since the vehicle speed is equal to the preset speed, the ramp value is greater than the preset value, and the gear is the forward gear, it is determined that there is a risk of a slope slip in the current driving process, the sliding feedback condition is immediately stopped, and the power system of the vehicle is controlled to provide power output so that the vehicle continues to move forward.
In some embodiments, a control method comprises: and controlling the power system to provide power output according to the ramp value.
Thus, the vehicle is driven to run in the same direction of the gear, and the vehicle is prevented from sliding in the opposite direction of the gear. Specifically, the ramp values and the power output values have a preset corresponding relationship, each ramp value can correspond to one power output value, and a plurality of ramp values can also correspond to one power output value, so that after the vehicle stops sliding feedback working conditions on any ramp, the power can be output according to the preset corresponding relationship to drive the vehicle to climb the slope to move forwards.
In one example, under the condition that the vehicle is in the coasting feedback working condition, the slope value is acquired to be 15 degrees, when the vehicle needs to perform the operation of preventing the vehicle from sliding down the slope, the coasting feedback working condition is stopped, and according to the preset corresponding relation between the slope value and the power output value, the power system of the vehicle is controlled to output the power corresponding to the slope value of 15 degrees, so that the vehicle is driven to run towards the same direction of the gear.
In certain embodiments, performing a hill-fall prevention operation of a vehicle includes: an electronic stability control system that controls the vehicle is automatically boosted to provide an auxiliary braking force to hold the vehicle stationary.
Therefore, the vehicle can stop energy recovery and keep still, and the vehicle is prevented from sliding down a slope. Specifically, the Electronic Stability Control system (ESC) described above: is a generic term for a system or procedure that effectively prevents a vehicle from running away when it reaches its dynamic limits while aiming to improve the handling performance of the vehicle. The electronic stability program of the electronic stability control system can improve the safety and the controllability of the vehicle. The automatic pressure building of the mechanism can realize the active braking assistance.
When the vehicle is in a sliding feedback working condition, and the speed of the vehicle is less than or equal to a preset speed, the ramp value is greater than a preset value, and the gear is a forward gear, the electronic stability control system of the vehicle is controlled to automatically boost pressure to provide auxiliary braking force according to sliding feedback working condition information fed back by the power system or a negative torque value of the vehicle so as to keep the vehicle static. The supercharging intensity can be calibrated according to the ramp value, and different ramps correspond to different supercharging intensities so as to ensure the deceleration comfort of the vehicle and ensure the parking capacity of the vehicle on the ramp.
Referring to fig. 4, in an example, the preset speed is 5kph, the preset value is 0 °, the vehicle speed acquired on the vehicle in the sliding feedback condition is 4kph, the ramp value is 15 °, the shift position is a forward gear, since the vehicle speed is less than the preset speed, the ramp value is greater than the preset value, and the shift position is the forward gear, it is determined that there is a risk of a slope slip in the current driving process, and according to a calibration relationship between the ramp value and the boost strength, the electronic stability control system of the vehicle is controlled to automatically boost to provide an auxiliary braking force, so that the vehicle is stationary on the ramp with the ramp value of 15 °.
In some embodiments, a control method comprises: and after the electric door pedal of the vehicle is detected to be pressed down and the power output by the power system of the vehicle is enough to support the current hill starting, controlling the electronic stability control system to release the braking force so as to start the vehicle.
Therefore, the vehicle can be started stably. Specifically, when the vehicle is kept static on a slope, an electric door pedal of the vehicle is stepped, an electric door depth travel sensor can acquire an electric door depth value, the power system outputs power according to the electric door depth, and on the basis of the current slope value, the electronic stability control system is controlled to release the braking force under the condition that the output power of the power system is enough to support the current slope for starting, the vehicle speed is gradually increased from zero, and the vehicle is started stably.
In certain embodiments, performing a hill-fall prevention operation of a vehicle includes: and controlling an electronic parking brake system of the vehicle to perform parking assistance to keep the vehicle stationary in case of receiving the electronic parking request.
Therefore, the vehicle can stop energy recovery and keep still, and the vehicle is prevented from sliding down a slope. Specifically, the vehicle is in a sliding feedback working condition, and when the speed of the vehicle is less than or equal to a preset speed, the ramp value is greater than a preset value and the gear is a forward gear, and when an electronic parking request is received, the electronic parking brake system is controlled to execute parking assistance according to the received electronic parking request so as to keep the vehicle stationary.
Referring to fig. 5, in an example, the preset speed is 3kph, the preset value is 0 °, the vehicle speed of the vehicle in the sliding feedback condition is 3kph, the ramp value is 15 °, the shift position is a forward gear, since the vehicle speed is equal to the preset speed, the ramp value is greater than the preset value, and the shift position is the forward gear, it is determined that there is a risk of a vehicle slipping down a slope in the current driving process, and the electronic parking brake system is controlled to perform parking assistance according to the received electronic parking request, so that the vehicle is stationary on the ramp with the ramp value of 15 °. The electronic park request may be output by a powertrain of the vehicle.
It should be noted that the specific values mentioned above are only for illustrating the implementation of the invention in detail and should not be construed as limiting the invention. In other examples or embodiments or examples, other values may be selected in accordance with the present invention and are not specifically limited herein.
In some embodiments, a control method comprises: and after detecting that the electric door pedal of the vehicle is pressed down and the power output by the power system of the vehicle is enough to support the current hill start, controlling the electronic parking brake system to release parking to start the vehicle.
In this way, the vehicle can continue to travel in the same direction as the gear. Specifically, when the vehicle is kept static on a slope, an electric door pedal of the vehicle is stepped on, an electric door depth travel sensor can acquire an electric door depth value, power output of a power system is controlled according to the electric door depth, and on the basis of the current slope value, the electronic parking brake system is controlled to release parking to enable the vehicle to start under the condition that the power output of the power system is enough to support the current slope to start.
Referring to fig. 6, the vehicle-mounted terminal 100 according to the embodiment of the present invention includes an acquisition module 102 and an execution module 104. The acquisition module 102 is configured to acquire a vehicle speed, a ramp value, and a gear of the vehicle when the vehicle is in a coasting feedback condition. The execution module 104 is configured to execute the operation of preventing the vehicle from rolling down the slope when the vehicle speed is not greater than a preset speed, the slope value is greater than a preset value, and the gear is a forward gear.
In the vehicle-mounted terminal 100, under the sliding feedback working condition, the vehicle speed, the ramp value and the gear of the vehicle are collected, and when the vehicle speed, the ramp value and the gear of the vehicle meet certain conditions, the vehicle is executed to prevent the vehicle from sliding down the slope, so that the vehicle is kept static when the sliding recovery end is finished, the potential safety hazard that the vehicle slides down the slope is avoided, and the driving safety is ensured.
It should be noted that the above explanation of the embodiment and the advantageous effects of the control method of the vehicle is also applicable to the in-vehicle terminal 100 used in the present embodiment, and is not detailed here to avoid redundancy.
Referring to fig. 7, a vehicle 1000 according to an embodiment of the present invention includes the in-vehicle terminal 100 according to the above-described embodiment.
In the vehicle 1000, under the sliding feedback working condition, the vehicle speed, the ramp value and the gear of the vehicle 1000 are collected, and when the vehicle speed, the ramp value and the gear of the vehicle 1000 meet certain conditions, the slope slipping prevention operation of the vehicle 1000 is executed, so that the vehicle 1000 is kept static when the sliding recovery end is finished, the potential safety hazard that the vehicle 1000 slips down the slope is avoided, and the driving safety is ensured.
Specifically, the vehicle 1000 includes, but is not limited to, a pure electric vehicle, a hybrid electric vehicle, an extended range electric vehicle, a fuel vehicle, and the like.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A control method of a vehicle, characterized by comprising:
under the condition that the vehicle is in a sliding feedback working condition, acquiring the speed, the ramp value and the gear of the vehicle;
and executing the slope slipping prevention operation of the vehicle under the conditions that the vehicle speed of the vehicle is not greater than a preset speed, the slope value is greater than a preset value and the gear is a forward gear.
2. The control method of a vehicle according to claim 1, characterized by comprising:
and in the running process of the vehicle, when the fact that an electric door pedal and a brake pedal of the vehicle are released is detected, the vehicle is controlled to enter a sliding feedback working condition.
3. The control method of a vehicle according to claim 1, wherein said performing a hill-slip prevention operation of the vehicle includes:
and stopping the coasting feedback condition and controlling a power system of the vehicle to provide power output.
4. The control method of a vehicle according to claim 3, characterized by comprising:
and controlling the power system to provide power output according to the ramp value.
5. The control method of a vehicle according to claim 1, wherein said performing a hill-slip prevention operation of the vehicle includes:
an electronic stability control system that controls the vehicle is automatically boosted to provide an auxiliary braking force to hold the vehicle stationary.
6. The control method of a vehicle according to claim 5, characterized by comprising:
and after detecting that an electric door pedal of the vehicle is pressed down and the power output by a power system of the vehicle is enough to support the current hill start, controlling the electronic stability control system to release the braking force so as to start the vehicle.
7. The control method of a vehicle according to claim 1, wherein said performing a hill-slip prevention operation of the vehicle includes:
and controlling an electronic parking brake system of the vehicle to execute parking assistance to keep the vehicle stationary in the case of receiving the electronic parking request.
8. The control method of a vehicle according to claim 7, characterized by comprising:
and after detecting that an electric door pedal of the vehicle is pressed down and the power output by a power system of the vehicle is enough to support the current hill start, controlling the electronic parking brake system to release parking to start the vehicle.
9. A vehicle-mounted terminal characterized by comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the speed, the ramp value and the gear of a vehicle under the condition that the vehicle is in a sliding feedback working condition;
and the execution module is used for executing the slope slipping prevention operation of the vehicle under the conditions that the vehicle speed of the vehicle is not greater than a preset speed, the slope value is greater than a preset value and the gear is a forward gear.
10. A vehicle characterized by comprising the in-vehicle terminal of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010841655.7A CN111942176A (en) | 2020-08-20 | 2020-08-20 | Vehicle control method, vehicle-mounted terminal and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
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| CN114454864A (en) * | 2022-03-10 | 2022-05-10 | 奇瑞新能源汽车股份有限公司 | Method and device for controlling vehicle to slide and vehicle and storage medium |
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