CN106671990A - MT gear shifting voice prompt method based on fuel economy of whole vehicle - Google Patents

MT gear shifting voice prompt method based on fuel economy of whole vehicle Download PDF

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Publication number
CN106671990A
CN106671990A CN201611190902.1A CN201611190902A CN106671990A CN 106671990 A CN106671990 A CN 106671990A CN 201611190902 A CN201611190902 A CN 201611190902A CN 106671990 A CN106671990 A CN 106671990A
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gear
speed
curve
current
chip
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孙苏民
曾发林
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Jiangsu University
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Jiangsu University
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Priority to CN201611190902.1A priority Critical patent/CN106671990A/en
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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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105—Speed
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/143—Alarm means
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/10—Change speed gearings
    • B60W2510/1005—Transmission ratio engaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention discloses an MT gear shifting voice prompt method based on fuel economy of a whole vehicle. The method includes the steps that S1, the current gear of the vehicle is detected; S2, whole vehicle fuel consumption at the current gear and the next gear is calculated according to the fuel characteristics of an engine and transmission system efficiency of the current gear and the next gear, a fuel consumption rate curve of the current gear and the next gear under the same throttle opening is calculated according to the whole vehicle fuel consumption, intersection points of a whole vehicle fuel consumption curve and the fuel consumption rate curve are gear shifting points, and the gear shifting points are fitted to a relation curve showing the changes of the throttle along with the vehicle speed, namely a gear shifting curve; S3, the current throttle opening value is obtained; S4, the corresponding gear shifting vehicle speed is obtained according to the gear shifting curve and the current throttle opening value; S5, the current vehicle speed and the obtained gear shifting vehicle speed are compared; and S6, different voice prompts are sent according to comparison results. According to the method, when the gear shifting curve is obtained, the fuel characteristics of the engine and the transmission ratio of a gearbox are both considered, the fuel economy is improved, and driving fatigue is relieved.

Description

A kind of MT gearshift voice prompting methods based on car load fuel economy
Technical field
The voice prompting method the invention provides a kind of MT based on car load fuel economy shifts gears, relate to gearshift control Method field.
Background technology
Manual gear drives, and low-grade location often occurs and steps on the gas greatly and cause the big driving situation of accelerator open degree, due to low Gear gear ratio coefficient is big, and the fuel-economy for causing wastes quite big.Especially new hand is bad due to processing in driving procedure The relation of gear and speed, engine speed and instrument will not be observed again on instantaneous oil consumption, often result in fuel oil waste.Example Such as, step on the gas deeply when low-grade location acceleration, sometimes engine speed is even more than 3500 turns, and do so is to waste naturally Not guilty gasoline.For the old driver for having certain driving age, because driving experience year in year out enables them to send out by listening The buzz of motivation, or observe drive speed instrument to judge shift speed change opportunity, but the energy of people by corresponding gear It is limited after all, it is impossible to the buzz of electromotor when constantly accurately going to judge to step on the gas, and Jing normal needs go to check speed The device such as instrument instrument can also increase the fatigue of driver, reduce driving experience.Gearshift constantly is needed to remind to reduce fuel oil for this Consume.
Existing gearshift prompting is not also onboard to popularize very much, especially on manual gear vehicle.Existing many gearshifts Device is display alarm, and principle of shifting gears only considered the fuel oil curve of electromotor, without considering change speed gear box in different shelves The different transmission efficiencies that position has.It can be seen that existing gearshift scheme has that precision is not enough, while also exigence is changed Gear prompting is occurred on manual gear vehicle.
The content of the invention
The present invention is a kind of MT gearshift voice prompting methods based on car load fuel economy, it is therefore intended that provide more preferably essence True process for gear is shifted gears in time prompting to manual driver, is reduced fuel oil and is wasted, and degree of lessening fatigue lifts driving experience.
To achieve these goals, using following scheme：
S1:The current gear of detection vehicle；
S2：According to engine fuel characteristic and the transmission system efficiency of next gear of current gear and current gear, Calculate the car load fuel consumption of the current gear and next gear of current gear；According to car load fuel consumption, calculate identical Under accelerator open degree, the fuel consumption curve of next gear of the current gear and current gear, car load fuel consumption curve Shifting points are with the intersection point of fuel consumption curve；Shifting points are fitted to into the relation curve that throttle changes with speed, as Gearshift curve, including upshift curve and downshift curve；
S3：Obtain the current accelerator open degree value of vehicle；
S4：According to gearshift curve gearshift speed corresponding with current accelerator open degree value acquisition；
S5：It is compared with the gearshift speed for obtaining according to current vehicle speed：1. current vehicle speed ＜ gearshift speed；2. current vehicle Speed >=gearshift speed；
S6：According to comparative result, it is converted into the signal of telecommunication and is passed in embedded voice reminder chip, and is sent according to signal Different voice reminders.
Wherein, the method for generating upshift curve：
According to the vehicle current gear with the transmission system efficiency of the next gear of current gear and with reference to electromotor combustion Oil consumption curve, calculates the car load fuel consumption of the current gear and the next gear of current gear；Fired according to the car load of gained Oil consumption, under calculating identical accelerator open degree, the fuel consumption curve of next gear of current gear and current gear, described two The intersection point of fuel consumption curve is shift-up point.A series of shift-up point is obtained under different accelerator open degrees；Then will be described Shift-up point is fitted to the relation curve that throttle changes with speed, and the curve is current gear and is converted to the next gear of the gear Upshift curve.
The method for generating downshift curve：Downshift point speed is the difference of same gear shift-up point speed and the first numerical value, while Require, the speed of the downshift point is greater than or equal to the minimum speed of current gear, prevents shake flame-out；By the downshift point The relation curve that throttle changes with speed is fitted to, the curve is the drop that the current gear is converted to a gear on the gear Shelves curve.
Wherein, the realization that gearshift is reminded：
According to placement vehicle speed sensor onboard, the speed of current gear is read, with reference to current acceleration or deceleration work Condition is compared with the gearshift speed obtained by gearshift curve in single-chip microcomputer；According to different comparative results, compiled by single-chip microcomputer The program write exports low and high level pulse excitation embedded speech chip, the language that final Jing speech chips are carried in corresponding pin Sound amplifier will remind sound to send and pass to driver.Under normal driving conditions, the pin of single-chip microcomputer and embedded speech chip Locate as low-level communications, when speed occurring conflicting with speed of shifting gears, single-chip microcomputer sends a high level signal and is activated to automatically The interface of corresponding gear is delivered to embedded speech chip, and by speech chip prompt tone is sent, and will be prompted to by speech amplifier Sound amplifies.
Beneficial effects of the present invention：
The present invention is a kind of MT gearshift voice prompting methods based on car load fuel economy, current vehicle is detected After gear, corresponding with automobile gear level gearshift curve is obtained, and the value of the current accelerator open degree of the vehicle, it is determined that shifting gears Gearshift speed corresponding with current throttle aperture on curve, and the current car of the vehicle is constantly detected according to velocity sensor Speed, is constantly compared with gearshift speed, according to the difference of comparative result, can produce corresponding level signal by single chip part Speech chip is activated to, so as to produce corresponding voice reminder driver timely gearshift process is carried out.The method is due to obtaining Simultaneously engine fuel characteristic and gearbox transmission ratio are considered in gearshift curve, on the basis for obtaining the economic shifting points of car load On by speech chip according to gearshift operating mode driver is constantly reminded, the method can significantly lift fuel economy, Mitigate the fatigue of driver simultaneously, lift driving experience.
Description of the drawings
Fig. 1 is a kind of design flow diagram of gearshift voice prompting method based on car load fuel economy of the present invention.
Fig. 2 is engine fuel consumption curve and car load fuel consumption curve chart.
Fig. 3 is gearshift curve product process figure.
Fig. 4 is the workflow diagram of voice prompting method.
Specific embodiment
The voice prompting method the invention provides a kind of MT based on car load fuel economy shifts gears, is applied to manual car On, under conditions of engine fuel consumption and transmission ratio is considered, by speed with gearshift speed constantly Comparison provides optimal economic gearshift voice reminder, can both reduce oil consumption, and driver's constantly observing apparatus can be mitigated again The degree of fatigue of instrument, improves driving experience.
The present invention is clearly fully described by below in conjunction with the accompanying drawings.
As shown in figure 1, for the present invention design flow diagram, including：
The gear of detection Current vehicle；Obtain and the corresponding gearshift curve of Current vehicle gear, the gearshift curve foundation Vehicle motor fuel characteristic and gearbox transmission efficiency are generated, and the gearshift curve is the song that accelerator open degree changes with speed Line；Then the current accelerator open degree value of the vehicle is obtained；Current gear is determined according to gearshift curve and current throttle opening value Under gearshift speed；Current speed is detected according to vehicle speed sensor and is compared with gearshift speed；Comparative result Jing monolithics The program write in machine sends corresponding level signal and gives embedded speech chip pin, produces corresponding gearshift voice reminder.
As shown in Fig. 2 for the comparison diagram of engine fuel consumption curve and car load fuel consumption curve, it is seen then that electromotor Fuel consumption curve it is misaligned with the fuel consumption curve of car load, in existing gearshift technology, be all much only take into account send out Motivation fuel characteristic, not in view of the impact of different gear transmission efficiencies.The present invention has used car load fuel consumption to consider Transmission efficiency process for gear, the voice reminder for designing on this basis, with more preferable fuel economy, the effect of control is more It is good accurate.
As shown in figure 3, it is specific as follows to generate gearshift curve (upshift and downshift) process：
Worked as according to the transmission system efficiency and engine fuel consumption calculations of the current gear of the vehicle and next gear The car load fuel consumption of front gear and next gear；Concrete calculating process includes：
T=a × n2+b×n+c；
Pe=e × n2+f×n+g；
η=h × n2+i×n+j；
Wherein, n is engine speed, and T is engine torque, PeEngine fuel consumption rate is represented, η represents drive system Transmission efficiency, a, e and h represent secondary term coefficient, and b, f and i represent Monomial coefficient, and c, g and j represent constant term coefficient.
So car load fuel consumption PvFor：
Pv=Pe× n=(e × n2+f×n+g)×(h×n2+i×n+j)；
Then according to the car load fuel consumption, under calculating identical accelerator open degree, the current gear and next gear Fuel consumption curve, the intersection point of two consumption rate curves is shift-up point；The shift-up point for obtaining is fitted to into throttle to become with speed The relation curve of change, the relation curve is the upshift curve that current gear rises to next gear.
Then downshift point is calculated, the speed of the point that downshifts is the difference (first of the gear shift-up point speed and the first numerical value The value of numerical value can take 2Km/h-6Km/h, arrange the first numerical value in order to avoid circulation is reminded in gearshift), and require the car of downshift point Speed will >=the minimum speed of current gear, this is in order to avoid engine misses.The downshift point for obtaining is fitted to into throttle With the relation curve that speed changes, the relation curve is current gear by the gearshift curve of a supreme gear.
As shown in figure 4, for the phonetic prompt method flow chart of the present invention, vehicle speed sensor constantly detects the fortune of the vehicle Scanning frequency degree, test data Jing interface is passed in single-chip microcomputer, and with the gearshift curve data being arranged in single-chip microcomputer judgement is compared. If the speed of the current gear for detecting is more than or equal to the upshift speed of the upshift curve, single-chip microcomputer can be by writing Program produces the corresponding pin that a high level pulse is activated to embedded speech chip；If surveyed current vehicle speed is less than or equal to described The downshift speed of downshift curve, single-chip microcomputer still can produce high level pulse and be activated to embedded speech chip phase by the program edited Corresponding pin.Embedded speech chip is subject to the excitation of the high level at respective pins, just produces corresponding voice reminder, and voice is carried Awake signal is amplified through the speech amplifier that chip is carried and is ultimately transferred to driver.
For example：6 grades of manual drive automobiles, do not consider i.e. the 6th grade situation about reversing gear of reversing gear, in the case of acceleration：
When the vehicle is in 1 grade of travel speed >=shift speed, single-chip microcomputer be just given a high level be activated to it is embedded Formula speech chip, chip just can send the voice message of " please gear being risen to into 2 grades ", and suggestion voice sets in the chips；
The vehicle 2 grades travel when, when speed >=gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedding Enter formula speech chip, chip just can send the voice reminder of " please gear being risen to into 3 grades "；
The vehicle 3 grades travel when, when speed >=gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedding Enter formula speech chip, chip just can send the voice reminder of " please gear being risen to into 4 grades "；
The vehicle 4 grades travel when, when speed >=gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedding Enter formula speech chip, chip just can send the voice reminder of " please gear being risen to into 5 grades "；
Under deceleration situations：
The vehicle 5 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedding Enter formula speech chip, chip just can send the voice reminder of " please gear being down to into 4 grades "；
The vehicle 4 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedding Enter formula speech chip, chip just can send the voice reminder of " please gear being down to into 3 grades "；
The vehicle 3 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedding Enter formula speech chip, chip just can send the voice reminder of " please gear being down to into 2 grades "；
The vehicle 2 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedding Enter formula speech chip, chip just can send the voice reminder of " please gear being down to into 1 grade "；
If Jing judges situation recited above do not occur, single-chip microcomputer produces low level signal or not by the program of editor Produce any signal excitation.
The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention Or change should be included within the scope of the present invention.

Claims (5)

1. a kind of MT based on car load fuel economy shifts gears voice prompting method, it is characterised in that comprise the steps：
S1, detects the current gear of vehicle；
S2, according to engine fuel characteristic and the transmission system efficiency of next gear of current gear and current gear, calculates The car load fuel consumption of next gear of the current gear and current gear；According to car load fuel consumption, identical throttle is calculated Under aperture, the fuel consumption curve of next gear of the current gear and current gear；The car load fuel consumption curve Shifting points are with the intersection point of the fuel consumption curve；Shifting points are fitted to into the relation curve that throttle changes with speed, As shift gears curve；
S3, obtains the current accelerator open degree value of vehicle；
S4, according to the corresponding gearshift speed of the current accelerator open degree value acquisition of gearshift curve and step S3 of step S2；
S5, current vehicle speed is compared with the gearshift speed for obtaining：1. current vehicle speed ＜ gearshift speed；2. current vehicle speed >=change Keep off a car speed；
S6, according to comparative result, is converted into the signal of telecommunication and is passed in embedded speech chip, and sends different languages according to signal Sound is reminded.
2. a kind of MT based on car load fuel economy according to claim 1 shifts gears voice prompting method, and its feature exists In the shift curve includes upshift curve and downshift curve；
The generation method of upshift curve：
Disappeared with the transmission system efficiency of the next gear of current gear and with reference to engine fuel according to the vehicle current gear Consumption curve, calculates the car load fuel consumption of the current gear and the next gear of current gear；Disappeared according to the car load fuel oil of gained Consumption, under calculating identical accelerator open degree, the fuel consumption curve of next gear of current gear and current gear, two fuel oils The intersection point of consumption curve is shift-up point；A series of shift-up point is obtained under different accelerator open degrees；Then by described upshift Point is fitted to the relation curve that throttle changes with speed, and the curve is the liter that current gear is converted to the next gear of the gear Shelves curve；
The generation method of downshift curve：
Downshift point speed is the difference of same gear shift-up point speed and the first numerical value, while requiring that the speed of the downshift point is big In or equal to the minimum speed of current gear；The downshift point is fitted to into the relation curve that throttle changes with speed, the curve As described current gear is converted to the downshift curve of a gear on the gear.
3. a kind of MT based on car load fuel economy according to claim 2 shifts gears voice prompting method, and its feature exists In first numerical value is to take 2Km/h-6Km/h.
4. a kind of MT based on car load fuel economy according to claim 1 shifts gears voice prompting method, and its feature exists In the calculation expression of the car load fuel consumption：
T=a × n2+b×n+c；
Pe=e × n2+f×n+g；
η=h × n2+i×n+j；
Wherein, n is engine speed, and T is engine torque, PeEngine fuel consumption rate is represented, η represents the biography of drive system Efficiency of movement, a, e and h represent secondary term coefficient, and b, f and i represent Monomial coefficient, and c, g and j represent constant term coefficient；
Car load fuel consumption PvFor：
Pv=Pe× n=(e × n2+f×n+g)×(h×n2+i×n+j)。
5. a kind of MT based on car load fuel economy according to claim 1 shifts gears voice prompting method, and its feature exists In, step S6 implement including：
In the case of acceleration：
When the vehicle is in 1 grade of travel speed >=shift speed, single-chip microcomputer just provides a high level and is activated to embedded language Sound chip, chip just can send the voice message of " please gear being risen to into 2 grades ", and suggestion voice sets in the chips；
The vehicle 2 grades travel when, when speed >=gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedded Speech chip, chip just can send the voice reminder of " please gear being risen to into 3 grades "；
The vehicle 3 grades travel when, when speed >=gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedded Speech chip, chip just can send the voice reminder of " please gear being risen to into 4 grades "；
The vehicle 4 grades travel when, when speed >=gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedded Speech chip, chip just can send the voice reminder of " please gear being risen to into 5 grades "；
Under deceleration situations：
The vehicle 5 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedded Speech chip, chip just can send the voice reminder of " please gear being down to into 4 grades "；
The vehicle 4 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedded Speech chip, chip just can send the voice reminder of " please gear being down to into 3 grades "；
The vehicle 3 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedded Speech chip, chip just can send the voice reminder of " please gear being down to into 2 grades "；
The vehicle 2 grades travel when, when speed≤gearshift speed, single-chip microcomputer be just given a high level be activated to it is embedded Speech chip, chip just can send the voice reminder of " please gear being down to into 1 grade ".
CN201611190902.1A 2016-12-21 2016-12-21 MT gear shifting voice prompt method based on fuel economy of whole vehicle Pending CN106671990A (en)

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CN107161154A (en) * 2017-05-18 2017-09-15 重庆大学 Consider the economic pace acquisition methods of gear
CN108443485A (en) * 2018-01-31 2018-08-24 江苏大学 A kind of MT shift speech prompting devices based on vehicle fuel economy
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CN112211997A (en) * 2020-10-27 2021-01-12 东风华神汽车有限公司 Gear shifting reminding control method and system for manual transmission gearbox of commercial vehicle
CN115158345A (en) * 2022-07-13 2022-10-11 广州瑞修得信息科技有限公司 Correction prompting method and device for high-oil-consumption driving of vehicle

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CN107161154A (en) * 2017-05-18 2017-09-15 重庆大学 Consider the economic pace acquisition methods of gear
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CN110057574A (en) * 2018-01-16 2019-07-26 北汽福田汽车股份有限公司 Shifting points calibrating platform
CN108443485A (en) * 2018-01-31 2018-08-24 江苏大学 A kind of MT shift speech prompting devices based on vehicle fuel economy
CN108980341A (en) * 2018-07-06 2018-12-11 吉利汽车研究院（宁波）有限公司 A kind of automobile upshift revolving speed point evaluation method
CN108980341B (en) * 2018-07-06 2020-05-01 吉利汽车研究院（宁波）有限公司 Method for estimating upshift rotating speed point of automobile
CN110395268A (en) * 2019-07-05 2019-11-01 吉林大学青岛汽车研究院 A kind of economic assisting automobile driver system of truck based on road ahead information
CN110395268B (en) * 2019-07-05 2021-06-18 吉林大学青岛汽车研究院 Truck economic driving reminding system based on front road information
CN112211997A (en) * 2020-10-27 2021-01-12 东风华神汽车有限公司 Gear shifting reminding control method and system for manual transmission gearbox of commercial vehicle
CN115158345A (en) * 2022-07-13 2022-10-11 广州瑞修得信息科技有限公司 Correction prompting method and device for high-oil-consumption driving of vehicle

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Application publication date: 20170517