CN109353230A - A kind of electric car based reminding method in slope - Google Patents
A kind of electric car based reminding method in slope Download PDFInfo
- Publication number
- CN109353230A CN109353230A CN201811299659.6A CN201811299659A CN109353230A CN 109353230 A CN109353230 A CN 109353230A CN 201811299659 A CN201811299659 A CN 201811299659A CN 109353230 A CN109353230 A CN 109353230A
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- CN
- China
- Prior art keywords
- slope
- torque
- electric car
- threshold value
- mcu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
-
- 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
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- 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
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric car based reminding methods in slope, enter slope mode when electric car stops going forward side by side on ramp, and VCU reads the torque value of the MCU of when in slope output, are recorded as ANm；VCU continuously judges whether MCU temperature, motor temperature etc. are more than preset protection threshold value；When detection limit be more than threshold value, vehicle vibration is caused by regular torque ripple, thus achieve the purpose that remind driver pay attention to；When detection limit is more than threshold value, VCU control MCU enters torque control model, sends A+BNm torque request to MCU, continue Cms；Torque request restores torque ANm when parking after reaching delay time, continues Cms；It repeats above operation D times, achievees the purpose that prompt driver；After completing torque ripple prompting, mode in slope is exited.Driver can take parking braking measure to vehicle in first time after experiencing prompting message in slope, improve vehicle safety.
Description
Technical field
The present invention relates to automobile technical fields in slope, and in particular to a kind of electric car based reminding method in slope.
Background technique
Electric car has the function of ramp automatic parking mostly at present, controls motor rotation blockage by MCU under mode in slope
Realize parking.But most of electric car does not have ramp parking prompting function, after vehicle enters mode in slope, motor does not turn
Dynamic, vehicle is noiseless, and driver, which is not easy to discover vehicle, has entered mode in slope, ignores and takes parking braking.In mode in slope
Lower driver leaves vehicle or attention does not concentrate in driving, when vehicle because MCU, motor excess temperature or other conditions are exited in slope
Car slipping easily occurs when mode, causes the accident.Part electric car is to eliminate the security risk of above-mentioned function in slope directly to cancel
Ramp automatic parking function, greatly reduces the convenience of electric car.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of simple structure and reasonable design, make
With convenient electric car alarm set in slope.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of electric car based reminding method in slope, it includes
Following process:
One, after electric car enters mode in slope, entire car controller VCU reads automobile when in slope micro-control unit MCU output
Torque value, be recorded as ANm；
Two, entire car controller VCU continuously judges whether micro-control unit MCU temperature or motor temperature are more than preset protection threshold
Value；
Three, when detection limit is more than preset protection threshold value, entire car controller VCU sends (A+B) Nm to micro-control unit MCU and turns round
Square request, delay time Cms；
Four, torque request restores torque ANm when parking after reaching delay time, continues Cms；
Five, it repeats above operation D times, achievees the purpose that prompt driver；
Six, after completing torque ripple prompting, mode in slope is exited.
After adopting the above scheme, the invention has the following beneficial effects: a kind of electric car based reminding method in slope of the present invention,
In a kind of supplement of conventional truck type of alarm (light, sound) prompt, caused by regular change motor output torque
The vibration of vehicle rule, makes driver pass through the alarm signal that sensory perception issues to vehicle, compared to light, sound prompting, shake
It is dynamic to remind the attention that more cause driver；Vibration reminding more intuitively can transmit information of vehicles to driver, not need to pass through
The meaning that text or symbolic interpretation are reminded；Prompt information does not need to convert, and can convey prompting message in first time；It experiences and stays
Driver can take parking braking measure to vehicle in first time after the prompting message of slope, improve vehicle safety.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is control principle drawing of the invention.
Specific embodiment
With reference to the accompanying drawing, the present invention is further illustrated.
Referring to shown in Fig. 1, present embodiment the technical solution adopted is that: a kind of electric car based reminding method in slope,
It includes following process:
One, stop going forward side by side on ramp when electric car after enter slope mode, entire car controller VCU reads automobile when in slope micro-control
The torque value of unit MCU output processed, is recorded as ANm；
Two, entire car controller VCU continuously judges whether micro-control unit MCU temperature or motor temperature are more than preset protection threshold
Value；
Three, when detection limit is more than preset protection threshold value, entire car controller VCU sends (A+10) Nm to micro-control unit MCU and turns round
Square request, delay time 200ms；
Four, torque request restores torque ANm when parking after reaching delay time, continues 200ms；
Five, it repeats above operation 3 times, vehicle vibration is caused by regular torque ripple, to reach prompt driver's
Purpose；
Six, after completing torque ripple prompting, mode in slope is exited.
A kind of electric car based reminding method in slope, has the advantage that described in present embodiment
1, one kind is proposed by motor output torque regular fluctuation, and the method for causing vehicle rule vibration prompting driver is
A kind of supplement of the tradition prompting mode such as sound, light；Present embodiment prompts vehicle that will release by human body
Mode in slope, driver need adapter tube vehicle operating；Compared with the prompts such as sound, light, can more it be drawn by human body prompt
Play driver's note that attention is focused on vehicle drive again.
2, starting torque is referred to as torque ripple by the acquisition motor output torque of when in slope, when torque ripple is reminded
Still ensure that vehicle not car slipping；
3, torque ripple amplitude can demarcate, and can adjust the dynamics of vehicle vibration；
4, the torque shock period can be demarcated, and can adjust vibration frequency according to different automobile types, avoid vehicle resonance point, prevent vehicle from damaging
It is bad；
5, vibration number can be demarcated, can be according to the different multiple vibration remindings of threshold value facility；Prompting is such as divided into 3 stages, slightly
Vibration 2 times is reminded, moderate reminds vibration 3 times, serious to remind vibration 5 times.
6, the prompting of different menace levels different temperatures threshold value can be arranged by different level.
The above is merely illustrative of the technical solution of the present invention, rather than limits those of ordinary skill in the art to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (1)
1. a kind of electric car based reminding method in slope, it is characterised in that it includes following process:
One, after electric car enters mode in slope, entire car controller VCU reads automobile when in slope micro-control unit MCU output
Torque value, be recorded as ANm；
Two, entire car controller VCU continuously judges whether micro-control unit MCU temperature or motor temperature are more than preset protection threshold
Value；
Three, when detection limit is more than preset protection threshold value, entire car controller VCU sends (A+B) Nm to micro-control unit MCU and turns round
Square request, delay time Cms；
Four, torque request restores torque ANm when parking after reaching delay time, continues Cms；
Five, it repeats above operation D times, achievees the purpose that prompt driver；
Six, after completing torque ripple prompting, mode in slope is exited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299659.6A CN109353230A (en) | 2018-11-02 | 2018-11-02 | A kind of electric car based reminding method in slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299659.6A CN109353230A (en) | 2018-11-02 | 2018-11-02 | A kind of electric car based reminding method in slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109353230A true CN109353230A (en) | 2019-02-19 |
Family
ID=65343899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811299659.6A Pending CN109353230A (en) | 2018-11-02 | 2018-11-02 | A kind of electric car based reminding method in slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109353230A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113619405A (en) * | 2021-07-29 | 2021-11-09 | 重庆市小电天体新能源汽车有限公司 | Electric automobile slope-parking reminding method and system and electric automobile |
| CN114633633A (en) * | 2021-12-28 | 2022-06-17 | 珠海格力电器股份有限公司 | Slope-stopping control method and device for electric vehicle, storage medium and motor controller |
| TWI780633B (en) * | 2021-03-23 | 2022-10-11 | 致茂電子股份有限公司 | Motor controller, motor control method and computer program product for vehicle assist control |
-
2018
- 2018-11-02 CN CN201811299659.6A patent/CN109353230A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI780633B (en) * | 2021-03-23 | 2022-10-11 | 致茂電子股份有限公司 | Motor controller, motor control method and computer program product for vehicle assist control |
| CN113619405A (en) * | 2021-07-29 | 2021-11-09 | 重庆市小电天体新能源汽车有限公司 | Electric automobile slope-parking reminding method and system and electric automobile |
| CN114633633A (en) * | 2021-12-28 | 2022-06-17 | 珠海格力电器股份有限公司 | Slope-stopping control method and device for electric vehicle, storage medium and motor controller |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190219 |