CN110789337A - Mode switching control method and control device of electric control four-wheel drive system - Google Patents
Mode switching control method and control device of electric control four-wheel drive system Download PDFInfo
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- CN110789337A CN110789337A CN201810864781.7A CN201810864781A CN110789337A CN 110789337 A CN110789337 A CN 110789337A CN 201810864781 A CN201810864781 A CN 201810864781A CN 110789337 A CN110789337 A CN 110789337A
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- wheel drive
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- drive controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
- B60K2023/0883—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles manually actuated
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a mode switching control method and a mode switching control device of an electric control four-wheel drive system. According to the invention, when the vehicle is powered on, the vehicle is controlled to work in the default working mode, and the default working mode is set, so that the vehicle is prevented from entering the four-wheel-drive locking mode when being started, and the problems that the friction plate of the four-wheel-drive torque manager causes excessive wear, the four-wheel-drive service life is influenced, the oil consumption is increased and the fuel economy is influenced in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of automobile control, in particular to a mode switching control method and a mode switching control device of an electric control four-wheel drive system.
Background
Traditional four-wheel-drive cross country vehicle generally adopts knob formula four-wheel-drive switch, and the driver carries out the switching of four-wheel-drive mode through the physics knob, to some drivers who do not have cross country experience, do not have two at all to drive, four-wheel-drive's notion, it should adopt two to drive or four-wheel-drive automatic mode also not know normal road and travel, when knob switch is in four-wheel-drive locking mode, can cause excessive wearing and tearing to four-wheel-drive torque manager friction discs, influence four-wheel-drive life-span, can cause the oil consumption to increase simultaneously, influence fuel economy.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a mode switching control method and a control device for an electric control four-wheel drive system.
The invention provides a mode switching control method of an electric control four-wheel drive system, which comprises the following steps:
when the vehicle is powered on, the four-wheel drive controller controls the automobile to work in a driving mode corresponding to the default driving mode according to the default driving mode, wherein the default driving mode is a two-wheel drive mode or a four-wheel drive automatic mode.
Further, when the vehicle is powered on, the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode specifically as follows:
when the vehicle is powered on, the four-wheel drive controller detects a hardware power-on signal of the KL15 of the vehicle, and calls a default driving mode according to the detected hardware power-on signal of the KL15 of the vehicle to control the vehicle to work in the default driving mode.
Further, when the vehicle is powered on, the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode specifically as follows:
when a vehicle is powered on, a button type four-wheel drive switch detects a hardware power-on signal of a KL15 of the vehicle, a driving mode switching request signal is sent to a four-wheel drive controller according to the detected hardware power-on signal of the KL15 of the vehicle, the driving mode switching request signal carries a default driving mode, and the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode carried by the received driving mode switching request information.
Further, the control method further includes:
the four-wheel drive controller switches the driving modes according to a set sequence according to a received driving mode switching request signal triggered by clicking or pressing the button type four-wheel drive switch.
Further, the control method further includes:
when a KL15 hardware power-off signal is detected, the four-wheel drive controller and the push-button four-wheel drive switch stop working.
Further, the control method further includes:
the driving mode switching request signal is transmitted to an instrument through a Controller Area Network (CAN) bus or a hard wire, and the instrument displays corresponding driving mode characters or icons.
The control device of the electric control four-wheel drive system comprises a four-wheel drive controller, wherein the four-wheel drive controller is used for controlling a vehicle to work in a default drive mode according to the default drive mode when the vehicle is powered on, and the default drive mode is a two-wheel drive mode or a four-wheel drive automatic mode.
Further, the control device further comprises a button type four-wheel drive switch, the button type four-wheel drive switch is used for sending a driving mode switching request signal to the four-wheel drive controller when being clicked or pressed, and the four-wheel drive controller is used for receiving the driving mode switching request signal and switching the driving modes according to a set sequence.
Further, when the KL15 hardware power-off signal is detected, the four-wheel drive controller and the push-button four-wheel drive switch stop working.
Further, the push button type four-wheel drive switch is also used for sending the default driving mode to the four-wheel drive controller when a KL15 hardware power-on signal is detected.
Further, the control device further comprises an instrument, and the instrument is used for acquiring the driving mode switching request signal through a Controller Area Network (CAN) bus or a hard wire and displaying corresponding driving mode characters or icons.
The implementation of the invention has the following beneficial effects:
according to the invention, when the vehicle is powered on, the vehicle is controlled to work in the default working mode, and the default working mode is set, so that the vehicle is prevented from entering the four-wheel-drive locking mode when being started, and the problems that the friction plate of the four-wheel-drive torque manager causes excessive wear, the four-wheel-drive service life is influenced, the oil consumption is increased and the fuel economy is influenced in the prior art are solved.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a mode switching control method of an electronically controlled four-wheel drive system provided by the invention.
Fig. 2 is a structural diagram of a control device of the electric control four-wheel drive system provided by the invention.
Detailed Description
The key content of the patent is that when the automobile is powered on, the driving mode is set to the default mode, so that the damage to the automobile caused by long-term running of the automobile in the four-wheel drive locking mode is avoided, and the specific implementation mode of the method and the system is further described with reference to the attached drawings and the embodiment.
The following describes an embodiment of a mode switching control method and a control device of an electronically controlled four-wheel drive system provided by the invention in detail.
As shown in fig. 1, an embodiment of the present invention provides a mode switching control method for an electronically controlled four-wheel drive system, where the control method includes:
and S101, when the vehicle is powered on, the four-wheel drive controller controls the vehicle to work in a driving mode corresponding to a default driving mode according to the default driving mode, wherein the default driving mode is a two-wheel drive mode or a four-wheel drive automatic mode.
It should be noted that the four-wheel drive controller is a component of an ECU (Electronic Control Unit), and when the vehicle is powered on, the four-wheel drive controller detects a hardware power-on signal of KL15 of the vehicle to determine that the vehicle is powered on, and invokes a default drive mode to Control the vehicle to operate in the default drive mode; the default driving mode is a driving mode preset by the four-wheel drive controller, when the default driving mode is a two-wheel drive mode, the driving mode corresponding to the work of the automobile is controlled to be a two-wheel drive mode, and when the default driving mode is a four-wheel drive automatic mode, the driving mode corresponding to the work of the automobile is controlled to be a four-wheel drive automatic mode; by the method, when the automobile is re-ignited, the driving mode can be automatically switched to the two-wheel-drive mode or the four-wheel-drive automatic mode, and the damage to the automobile caused by the fact that the automobile works in the four-wheel-drive locking mode for a long time due to limited knowledge of a driver on the off-road automobile is avoided.
Another method provided by the embodiment of the invention is that when a vehicle is powered on, when a button type four-wheel drive switch detects a hardware power-on signal of a KL15 of the vehicle, the vehicle is judged to be powered on, a driving mode switching request signal is sent to a four-wheel drive controller according to the detected hardware power-on signal of the KL15 of the vehicle, the driving mode switching request signal carries a default driving mode, and the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode carried by the received driving mode switching request signal.
And step S102, the four-wheel drive controller switches the driving modes according to a set sequence according to a received driving mode switching request signal triggered by clicking or pressing the button type four-wheel drive switch.
For the convenience of switching by a driver, the button type four-wheel-drive switch can be a hardware button type four-wheel-drive switch arranged on a steering wheel or a software button type four-wheel-drive switch arranged on a display screen, a drive mode switching request signal is triggered by clicking or pressing the button type four-wheel-drive switch to send the drive mode switching request signal to the four-wheel-drive controller, and the four-wheel-drive controller switches the drive mode once when receiving the drive mode switching request information once; the set sequence can be a cycle of a two-drive mode, a four-drive automatic mode and a four-drive locking mode, and can also be other sequences.
And step S103, when the four-wheel drive controller and the button type four-wheel drive switch detect a KL15 hardware power-off signal, stopping the four-wheel drive controller and the button type four-wheel drive switch.
In the embodiment of the invention, the instrument receives a driving mode switching request signal through a Controller Area Network (CAN) bus or a hard wire, and displays the driving mode characters or icons on the instrument. Through the display of the instrument, unnecessary abrasion of the automobile caused by mistakenly switching the driving mode to the four-wheel drive locking mode in long-distance driving by a driver is further avoided.
As shown in fig. 2, an embodiment of the present invention provides a control device of an electronically controlled four-wheel drive system, where the control device includes a four-wheel drive controller 21, and the four-wheel drive controller 21 is configured to control, when a vehicle is powered on, an automobile to operate in a driving mode corresponding to a default driving mode according to the default driving mode, where the default driving mode is a two-wheel drive mode or a four-wheel drive automatic mode.
The control device further comprises a push-button four-wheel drive switch 22, wherein the push-button four-wheel drive switch 22 is used for sending a drive mode switching request signal to the four-wheel drive controller; the four-wheel drive controller 21 is configured to receive the switching request signal and switch a driving mode according to a set sequence;
further, when the KL15 hardware power-off signal is detected, the four-wheel drive controller and the push-button four-wheel drive switch stop working.
The control device further comprises an instrument 23, and the instrument 23 is used for acquiring a driving mode switching request signal through a Controller Area Network (CAN) bus or a hard wire and displaying corresponding driving mode characters or icons.
The implementation of the invention has the following beneficial effects:
according to the invention, when the vehicle is powered on, the vehicle is controlled to work in the default working mode, and the default working mode is set, so that the vehicle is prevented from entering the four-wheel-drive locking mode when being started, and the problems that the friction plate of the four-wheel-drive torque manager causes excessive wear, the four-wheel-drive service life is influenced, the oil consumption is increased and the fuel economy is influenced in the prior art are solved.
One of ordinary skill will appreciate that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A mode switching control method of an electric control four-wheel drive system is characterized by comprising the following steps:
when the vehicle is powered on, the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode, wherein the default driving mode is a two-wheel drive mode or a four-wheel drive automatic mode.
2. The control method according to claim 1, wherein when the vehicle is powered on, the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode specifically:
when the vehicle is powered on, the four-wheel drive controller detects a hardware power-on signal of the KL15 of the vehicle, and calls a default driving mode according to the detected hardware power-on signal of the KL15 of the vehicle to control the vehicle to work in the default driving mode.
3. The control method according to claim 1, wherein when the vehicle is powered on, the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode specifically:
when a vehicle is powered on, a button type four-wheel drive switch detects a hardware power-on signal of a KL15 of the vehicle, a driving mode switching request signal is sent to a four-wheel drive controller according to the detected hardware power-on signal of the KL15 of the vehicle, the driving mode switching request signal carries a default driving mode, and the four-wheel drive controller controls the vehicle to work in the default driving mode according to the default driving mode carried by the received driving mode switching request information.
4. The method of claim 1, wherein the control method further comprises:
the four-wheel drive controller switches the driving modes according to a set sequence according to a received driving mode switching request signal triggered by clicking or pressing the button type four-wheel drive switch.
5. The method of claim 4, wherein the control method further comprises:
when a KL15 hardware power-off signal is detected, the four-wheel drive controller and the push-button four-wheel drive switch stop working.
6. The control method according to claim 4, characterized by further comprising:
the driving mode switching request signal is transmitted to an instrument through a Controller Area Network (CAN) bus or a hard wire, and the instrument displays corresponding driving mode characters or icons.
7. The control device of the electric control four-wheel drive system is characterized by comprising a four-wheel drive controller, wherein the four-wheel drive controller is used for controlling a vehicle to work in a default driving mode according to the default driving mode when the vehicle is powered on, and the default driving mode is a two-wheel drive mode or a four-wheel drive automatic mode.
8. The control device as claimed in claim 7, wherein the control device further comprises a push button type four-wheel drive switch, the push button type four-wheel drive switch is used for sending a driving mode switching request signal to the four-wheel drive controller when being clicked or pressed, and the four-wheel drive controller is used for receiving the driving mode switching request signal and switching the driving modes according to a set sequence.
9. The control device according to claim 8, wherein the four-wheel drive controller and the push-button four-wheel drive switch stop operating when a KL15 hardware power-off signal is detected.
10. The control device according to claim 8, further comprising a meter for acquiring the driving mode switching request signal through a Controller Area Network (CAN) bus or a hard wire and displaying a corresponding driving mode text or icon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810864781.7A CN110789337A (en) | 2018-08-01 | 2018-08-01 | Mode switching control method and control device of electric control four-wheel drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810864781.7A CN110789337A (en) | 2018-08-01 | 2018-08-01 | Mode switching control method and control device of electric control four-wheel drive system |
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|---|---|
| CN110789337A true CN110789337A (en) | 2020-02-14 |
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| CN201810864781.7A Pending CN110789337A (en) | 2018-08-01 | 2018-08-01 | Mode switching control method and control device of electric control four-wheel drive system |
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| EP1413468A2 (en) * | 2002-10-25 | 2004-04-28 | Fuji Jukogyo Kabushiki Kaisha | Differential limiting control apparatus for vehicle |
| JP2011037298A (en) * | 2009-08-06 | 2011-02-24 | Hitachi Automotive Systems Ltd | Drive mode switching controller for transfer |
| FR2958590A3 (en) * | 2010-04-12 | 2011-10-14 | Renault Sa | Method for operating controlled four-wheel drive transmission system of motor vehicle, involves generating signal that characterizes failure or malfunction and influences operation of transmission system |
| CN103121403A (en) * | 2011-11-18 | 2013-05-29 | 北汽福田汽车股份有限公司 | Four-wheel drive switching device of vehicle |
| CN103260928A (en) * | 2010-12-16 | 2013-08-21 | 北极星工业有限公司 | Multimode traction system |
| CN103371806A (en) * | 2012-04-23 | 2013-10-30 | 泰尔茂株式会社 | Exercise amount measurement device, exercise amount measurement system and exercise amount measurement method |
| CN203438853U (en) * | 2013-09-10 | 2014-02-19 | 安徽江淮汽车股份有限公司 | Intelligent automobile four-wheel-drive control system |
| CN103818244A (en) * | 2012-11-15 | 2014-05-28 | 株式会社捷太格特 | Four-wheel-drive vehicle |
| CN108146444A (en) * | 2017-12-15 | 2018-06-12 | 蔚来汽车有限公司 | Vehicle driving model switching system and method |
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2018
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1413468A2 (en) * | 2002-10-25 | 2004-04-28 | Fuji Jukogyo Kabushiki Kaisha | Differential limiting control apparatus for vehicle |
| JP2011037298A (en) * | 2009-08-06 | 2011-02-24 | Hitachi Automotive Systems Ltd | Drive mode switching controller for transfer |
| FR2958590A3 (en) * | 2010-04-12 | 2011-10-14 | Renault Sa | Method for operating controlled four-wheel drive transmission system of motor vehicle, involves generating signal that characterizes failure or malfunction and influences operation of transmission system |
| CN103260928A (en) * | 2010-12-16 | 2013-08-21 | 北极星工业有限公司 | Multimode traction system |
| CN103121403A (en) * | 2011-11-18 | 2013-05-29 | 北汽福田汽车股份有限公司 | Four-wheel drive switching device of vehicle |
| CN103371806A (en) * | 2012-04-23 | 2013-10-30 | 泰尔茂株式会社 | Exercise amount measurement device, exercise amount measurement system and exercise amount measurement method |
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Application publication date: 20200214 |