CN201646716U - Intelligent prompting device for diesel oil whole vehicle economical gear and economical speed section - Google Patents
Intelligent prompting device for diesel oil whole vehicle economical gear and economical speed section Download PDFInfo
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- CN201646716U CN201646716U CN2010201715102U CN201020171510U CN201646716U CN 201646716 U CN201646716 U CN 201646716U CN 2010201715102 U CN2010201715102 U CN 2010201715102U CN 201020171510 U CN201020171510 U CN 201020171510U CN 201646716 U CN201646716 U CN 201646716U
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Abstract
The utility model provides an intelligent prompting device for a diesel oil whole vehicle economical gear and economical speed section, comprising a controller and a display module, the controller acquires information of the engine and the whole vehicle via CAN bus, automatically identifies the whole vehicle load state, calculates the present gear under the present load, judging whether the gear is the most economical gear of the present vehicle speed section via checking the table, and whether the present vehicle speed is the most economical section vehicle speed of the present gear, and, via the display module, automatically remind of the most reasonable gear in the present state and the economical speed range under the present gear; acquiring also, in the state of the controller full-load and no-load storage, the information of the torque at a constant speed of each gear, and constant speed fuel consumption curves under each load at each gear. The intelligent prompting device is capable of effectively changing the driving custom of drivers, preventing the engine from being in the state of high fuel consumption for a long time, enabling the engine in an economical region of mapping characteristics, to reach the purpose of saving fuel consumption.
Description
Technical field
The utility model relates to a kind of vehicle-mounted alarm set, economic gear of especially a kind of diesel-oil whole and economic speed section intelligent reminding device.
Background technology
International Crude Oil hits new peak continuously at present, and fuel price also climbs up and up thereupon, and society has proposed requirements at the higher level to the fuel economy of automobile, and the various technical measures that can significantly reduce fuel oil consumption are subjected to people's great attention.
Can effectively improve the car load fuel economy to economic gear of car load and economic speed section intelligent reminding, the state different according to car load, its economic gear and economic speed section are also different.Same driver also is difficult to the well most economical operation area of identification current state for the car load of different loads.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and economic gear of a kind of diesel-oil whole and economic speed section intelligent reminding device are provided, and least cost is realized diesel-oil whole fuel-economizing purpose.
The technical scheme that provides according to the utility model, economic gear of described diesel-oil whole and economic speed section intelligent reminding device, comprise controller and display module, described controller obtains driving engine and car load information by the CAN bus, automatically discern the carload state, and current shift under the current load calculated, judge by tabling look-up whether this gear is the most economical gear of current vehicle speed section, whether current vehicle speed is most economical section speed of a motor vehicle of current shift, and reminds the most rational gear under the current state and the economic speed zone under the current shift automatically by display module; Described controller internal memory contain fully loaded and light condition under, the moment of torsion during each grade constant speed, and the constant-speed fuel economy curve under each load, each gear.
The information that described controller obtains in real time comprises rotating speed, the speed of a motor vehicle and moment of torsion.
If the minimum stabilizing speed of a high gear is lower than current vehicle speed, the prompting that then upgrades is calculated the economic speed section of a current shift and a high gear simultaneously, and is carried out the economic speed section according to current shift and remind; If the minimum stabilizing speed of a high gear is higher than current vehicle speed, then only calculate the economic speed section of current shift, the Ji speed of a motor vehicle zone prompting of passing through of going forward side by side.
Described controller obtains information all based on car load CAN network, based on the SAE-J1939 agreement.
Described controller is according to the type of car load: bus, city big bus or goods carrying vehicle determine the economic speed section of this car.
The utility model has the advantages that: can effectively utilize ECU internal data and strategy, ECU software and hardware and internal data are not done any change, also need not change former car load inner structure, least cost is realized diesel-oil whole fuel-economizing purpose; The utility model can effectively change driver's driving habit, avoid making driving engine to be in high oil consumption state for a long time, make driving engine be in the economic zone (the low oil consumption zone of fuel economy family of characteristic curves) of universal characteristic, reach the purpose of saving fuel oil consumption with this.
Description of drawings
Fig. 1 is the utility model control system structural representation.
Fig. 2 is economic gear of the utility model and economic speed section intelligent reminding device control flow chart.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Must there be a gear the most rational (low oil consumption gear) in car load when moving under certain speed of a motor vehicle, must there be a most economical speed of a motor vehicle section (low oil consumption speed of a motor vehicle zone) in this gear simultaneously.The utility model provides economic gear of a kind of diesel-oil whole and economic speed section intelligent reminding device, mainly can carry out Intelligent Recognition to the diesel engine carload, and according to current load and current shift, the driver is carried out economic gear and economic speed section intelligent reminding, and by display module demonstration relevant information, make engine condition adjust to the economic zone, reduce engine consumption, least cost is realized the fuel-economizing purpose.
As shown in Figure 1: the utility model comprises an intelligent reminding controller and a display module, obtain driving engine and car load information fast by the CAN bus, automatically discern whole vehicle state, and current shift under the current load calculated, judge whether this gear is the most economical gear of current vehicle speed section, whether current vehicle speed is most economical section speed of a motor vehicle of current shift, and by the display module prompting of being correlated with.
Engine electric-controlled unit ECU is responsible for the work of control driving engine, comprises starting, oil spout, cylinder deactivation, shutdown etc.The intelligent reminding controller is responsible for real-time monitoring engine and whole vehicle state, calculates current load condition and gear information.And by display module prompting economic gear of driver and economic speed zone.
Economic gear and economic speed section intelligent reminding device are mainly realized after car load a period of time is in steady operation, economic gear and economic speed section intelligent reminding device can be according to current load condition and shifting state, at the most rational gear of reminding automatically on the display module under driver's current state, remind the economic speed zone under driver's current shift simultaneously, the intelligent reminding function has also been improved the driver driving traveling comfort in fuel-economizing.
The utility model adopts the CAN bus to obtain engine information, by automatic identification carload state; Information is obtained all based on car load CAN network, has good commonality on electric-control motor, and it realizes that engine information obtains, and as rotating speed, the speed of a motor vehicle, throttle, moment of torsion etc., all is based on the SAE-J1939 agreement; Look into the constant-speed fuel economy curve of each gear according to current load condition, remind current most economical gear of driver and most economical speed of a motor vehicle zone.Effectively change the driver driving custom, adjust engine speed, make engine condition adjust to the economic zone, reduce engine consumption.
Specific practice of the present utility model is: at first by car load experiment or car load software for calculation CRUISE analogue computing, determine under fully loaded and the light condition, moment of torsion during each grade constant speed, being used for carload judges, also to test simultaneously or analogue computing goes out constant-speed fuel economy curve under each load, each gear, be used for economic speed section basis for estimation, all deposit the intelligent reminding controller in.Described controller obtains rotation speed n, speed of a motor vehicle v and the torque T rq of current car load again by the CAN bus.For guaranteeing the precision of load, need after be in stable state, car load carry out load and judge.At first carry out current shift identification, according to axle ratio i0 behind current rotation speed n, speed of a motor vehicle v and the car load and radius of wheel r, by formula:
Obtain current shift speed ratio information.According to current shift inquiry moment of torsion MAP, judge that the moment of torsion under current shift, the speed of a motor vehicle takes the ratio of carrying torque T rq1, unloaded torque T rq0 again, by formula: Load%=(Trq1-Trq)/(Trq1-Trq0) * 100% judges current load condition.According to load condition Load% and shifting state i
gJudge whether current shift is the best gear of current vehicle speed, if the minimum stabilizing speed of a high gear is lower than current vehicle speed, prompting then upgrades, the constant-speed fuel economy form of storing in advance by inquiry controller inside draws the economic speed section of a current shift and a high gear simultaneously, and carries out the economic speed section according to current shift and remind.If the minimum stabilizing speed of a high gear is higher than current vehicle speed, then only calculate the economic speed section of current shift, the Ji speed of a motor vehicle zone prompting of passing through of going forward side by side.
By the CAN bus, obtain rotating speed, the speed of a motor vehicle and the moment of torsion of current car load, judge and calculate current load condition, again according to the back axle ratio of car load, current information such as rotating speed, the speed of a motor vehicle and tire radius, calculate current gear, according to load and gear information, determine whether more economical gear.Simultaneously can determine its economic speed section according to bus and city big bus or goods carrying vehicle.Bus only carries out fuel consumption of 100km relatively to low gear, determines the prompting of fuel-efficient gear and speed of a motor vehicle section.For the city big bus, then need to consider efficient, main what consider is the improvement degree of efficient relative oil consumption level when improving, and the scope of improvement degree minimum is defined as best vehicle speed range, i.e. the minimum zone of Δ Q/v.According to different car load purposes, the economic speed zone that the driver carries out under the current shift is reminded.Economic gear and economic speed section prompting function are primarily implemented in the economic speed zone of reminding on the display module under the most rational gear of driver and the current shift, and the intelligent reminding function has also been improved the driver driving traveling comfort in fuel-economizing.
Compared with the prior art the utility model has the following advantages:
1. the software and hardware of car load and Engine ECU need not to change;
2. this economics step and economic speed section intelligent reminding device interface are simple, only realize data communication by the CAN line;
3. this economics step and economic speed section intelligent reminding device cost performance height are realized the highest fuel-economizing with least cost.
4. the utility model outward appearance exquisiteness is small and exquisite, and characteristics of compact layout is easy for installation;
5. can also greatly improve driver comfort fuel-economizing the time.
Claims (5)
1. economic gear of diesel-oil whole and economic speed section intelligent reminding device, comprise controller and display module, it is characterized in that: described controller obtains driving engine and car load information by the CAN bus, automatically discern the carload state, and current shift under the current load calculated, judge by tabling look-up whether this gear is the most economical gear of current vehicle speed section, whether current vehicle speed is most economical section speed of a motor vehicle of current shift, and reminds the most rational gear under the current state and the economic speed zone under the current shift automatically by display module; Described controller internal memory contain fully loaded and light condition under, the moment of torsion during each grade constant speed, and the constant-speed fuel economy curve under each load, each gear.
2. economic gear of diesel-oil whole as claimed in claim 1 and economic speed section intelligent reminding device is characterized in that the information that described controller obtains in real time comprises rotating speed, the speed of a motor vehicle and moment of torsion.
3. economic gear of diesel-oil whole as claimed in claim 1 and economic speed section intelligent reminding device, it is characterized in that if the minimum stabilizing speed of a high gear is lower than current vehicle speed, prompting then upgrades, calculate the economic speed section of a current shift and a high gear simultaneously, and carry out the economic speed section according to current shift and remind; If the minimum stabilizing speed of a high gear is higher than current vehicle speed, then only calculate the economic speed section of current shift, the Ji speed of a motor vehicle zone prompting of passing through of going forward side by side.
4. economic gear of diesel-oil whole as claimed in claim 1 and economic speed section intelligent reminding device is characterized in that described controller obtains information all based on car load CAN network, based on the SAE-J1939 agreement.
5. economic gear of diesel-oil whole as claimed in claim 1 and economic speed section intelligent reminding device is characterized in that the type of described controller according to car load: bus, city big bus or goods carrying vehicle determine the economic speed section of this car.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201715102U CN201646716U (en) | 2010-04-15 | 2010-04-15 | Intelligent prompting device for diesel oil whole vehicle economical gear and economical speed section |
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| CN2010201715102U CN201646716U (en) | 2010-04-15 | 2010-04-15 | Intelligent prompting device for diesel oil whole vehicle economical gear and economical speed section |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811482A (en) * | 2010-04-15 | 2010-08-25 | 中国第一汽车集团公司 | Intelligent reminding device of economic gear and economic vehicle speed section of diesel-oil whole vehicle |
| CN102745199A (en) * | 2011-03-24 | 2012-10-24 | 通用汽车环球科技运作有限责任公司 | System and method for calculating an instantaneous fuel economy for a vehicle |
| CN103278335A (en) * | 2013-05-10 | 2013-09-04 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile running state emulation system and method |
| CN110873177A (en) * | 2018-08-30 | 2020-03-10 | 上汽通用汽车有限公司 | Bus gear shifting method |
-
2010
- 2010-04-15 CN CN2010201715102U patent/CN201646716U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811482A (en) * | 2010-04-15 | 2010-08-25 | 中国第一汽车集团公司 | Intelligent reminding device of economic gear and economic vehicle speed section of diesel-oil whole vehicle |
| CN101811482B (en) * | 2010-04-15 | 2012-09-05 | 中国第一汽车集团公司 | Intelligent reminding device of economic gear and economic vehicle speed section of diesel-oil whole vehicle |
| CN102745199A (en) * | 2011-03-24 | 2012-10-24 | 通用汽车环球科技运作有限责任公司 | System and method for calculating an instantaneous fuel economy for a vehicle |
| US8903637B2 (en) | 2011-03-24 | 2014-12-02 | GM Global Technology Operations LLC | System and method for calculating an instantaneous fuel economy for a vehicle |
| CN102745199B (en) * | 2011-03-24 | 2016-01-20 | 通用汽车环球科技运作有限责任公司 | For calculating the system and method for vehicle instant fuel economy |
| CN103278335A (en) * | 2013-05-10 | 2013-09-04 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile running state emulation system and method |
| CN103278335B (en) * | 2013-05-10 | 2016-03-02 | 浙江吉利汽车研究院有限公司杭州分公司 | A kind of motoring condition analogue system and method |
| CN110873177A (en) * | 2018-08-30 | 2020-03-10 | 上汽通用汽车有限公司 | Bus gear shifting method |
| CN110873177B (en) * | 2018-08-30 | 2022-02-15 | 上汽通用汽车有限公司 | Bus gear shifting method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120415 |