CN105253020A - Control method for multifunctional combined instrument of electric vehicle - Google Patents
Control method for multifunctional combined instrument of electric vehicle Download PDFInfo
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- CN105253020A CN105253020A CN201510753335.5A CN201510753335A CN105253020A CN 105253020 A CN105253020 A CN 105253020A CN 201510753335 A CN201510753335 A CN 201510753335A CN 105253020 A CN105253020 A CN 105253020A
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Abstract
The invention relates to the technical field of vehicle instruments, in particular to a control method for a multifunctional combined instrument of an electric vehicle. A power battery control unit of the vehicle sends a battery electric quantity residual value to a whole vehicle multi energy control unit by a CAN wire in real time, and the whole vehicle multi energy control unit calculates and corrects energy consumption at present by collecting vehicle speed variation and accelerator variation information accumulated in set time, converts to a residual driving mileage and transmits to the instrument for displaying and outputting by the CAN wire. The instrument displays various pieces of information of the vehicle speed, gears, motor state, residual mileage, system fault and light state in an operation process of the electric vehicle in real time while indicating the charge residual electric quantity state of a main energy power battery and battery temperature to a driver, so that the driver can understand operation states of respective parts of the electric vehicle in a more timely and more intuitively manner, and the driving safety of the driver is ensured.
Description
Technical field
The present invention relates to auto meter technical field, be specifically related to a kind of control method of electronlmobil multifunctional combination instrument.
Background technology
Current new-energy automobile has progressively come into huge numbers of families, and for pure electric automobile, development is swift and violent like the mushrooms after rain especially, and being easily accepted by a user gradually, replaces the status of conventional gasoline car.For make driver more in time, the more real-time state recognizing vehicle, and the every terms of information in operational process, especially state, the faulty condition of speed gear, dynamo battery, driver can be judged within the shortest time, combination instrument is as the hinge of whole vehicle information and center, being to driver's the most visual embodiment, is one of requisite parts of every chassis, and the information of the instrument of conventional electric automobile display still very little.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of control method making instrument show the electronlmobil multifunctional combination instrument of more information.
Technical scheme of the present invention is: battery electric quantity surplus value is sent to car load multiple-energy-source control unit by CAN line by the electrokinetic cell control unit of vehicle in real time, described car load multiple-energy-source control unit is by gathering speed of a motor vehicle variable quantity, the throttle variable quantity information of accumulation in setting-up time, real-time calculating also revises current energy consumption, being converted into residue can continual mileage, transfers to instrument display translation by CAN line.
Further, the car running computer of vehicle obtains the battery temperature of electrokinetic cell control unit by CAN line, change into battery temperature value and transfer to instrument display translation.
Further, instrument viewing area comprises travel condition of vehicle display space, battery temperature display space, battery dump energy display space, power of motor display space and fault, information of vehicles highlight;
Described car running computer obtains the battery electric quantity of electrokinetic cell control unit by CAN line, exports battery dump energy display space to after this battery electric quantity is changed into battery electric quantity surplus value;
Described car running computer obtains the motor realtime power of drive motor control unit by CAN line, is converted into power of motor value and exports power of motor display space to;
Described car running computer obtains vehicle speed signal and the gear signal of anti-blocking brake system and gear box control unit by CAN line, changes into vehicle speed value and gear information, can export travel condition of vehicle display space together to by continual mileage with residue;
Described battery temperature value exports battery temperature display space to;
The fault of described instrument, information of vehicles highlight are provided with not under command light corresponding to associated components each with vehicle, when associated components et out of order, send not under command light and light enable signal, light not under command light to instrument.
Further, described power of motor value is with the display of the form of progress lattice, and its procedure for displaying is:
When drive motor is electronic state of exerting oneself, progress lattice show in real time with the real-time input of cw according to power signal;
When drive motor is that generated energy reclaims state, progress lattice show in real time with the input of conter clockwise according to generating state.
Further, described instrument fault, information of vehicles highlight are lighted the concrete mode of not under command light and are:
When safety airbag wire harness connection occurs that short circuit or crash sensor break down, air bag control unit sends breakdown signal to instrument by CAN line, lights safety air bag not under command light;
When brake-fluid level is too low or in travelling, braking during standstill is not removed, instrument can be sent a signal to by rigid line, light brake fault lamp;
When safety failure appears in car load, by CAN line, this signal is sent to car load multiple-energy-source control unit, car load safety failure signal is transmitted to instrument by described car load multiple-energy-source control unit, lights complete vehicle fault lamp;
When there is vehicle speed signal loss, electric boosting steering system torque sensor fault, electric booster steering system controller sends breakdown signal to instrument by CAN line, lights electric boosting steering system not under command light;
After brake switch, wheel speed sensors, antiblock device break down, breakdown signal directly sends to instrument by rigid line, lights antiblock device not under command light;
When battery electric quantity is lower than threshold value, car load multiple-energy-source control unit passes through the limited signal of CAN line sending performance to instrument, lights limited performance lamp;
When motor control unit temperature exceedes threshold value, send breakdown signal to instrument by CAN line, light motor overheating alarm lamp;
When the 12V low potential source of electronlmobil breaks down, then send breakdown signal to instrument by CAN line, light 12V accumulator failure lamp.
Further, described car load occurs that safety failure comprises: vehicle generation leaky or battery management unit test power battery insulation resistance do not meet the demands.
Further, when battery electric quantity is lower than threshold value, vehicle enters battery saving mode, limits the acceleration capability of vehicle and maximum speed.
Beneficial effect of the present invention: by control method of the present invention, instrument can while the chaufeur instruction power battery charged dump energy state of main energy sources and battery temperature, the also real-time much information such as the speed of a motor vehicle of display electronlmobil in operational process, gear, motor status, remaining mileage, the system failure, light status.The each parts running state of driver to electronlmobil is understood more in time, more intuitively, ensure that the traffic safety of driver.
Accompanying drawing explanation
Fig. 1 is the multifunctional combination Instrument connection graph of a relation utilizing the inventive method to carry out showing;
Fig. 2 is the Multifunctional assembled instrument surface and interface figure utilizing the inventive method to carry out showing;
In figure: 1-travel condition of vehicle district, 2-battery temperature district, 3-battery dump energy district, 4-power of motor district, 5-fault, information of vehicles highlight.
As shown in Figure 1, car running computer CPU is connected with electric automobile power battery control unit, drive motor control unit, car load multiple-energy-source control unit, gear box control unit, DC/DC control unit, electric powered steering control unit, anti-blocking brake system etc. by CAN line; Be connected with safety air bag control unit, light fixture, car door, safety strap, parking pedal, braking liquid bit switch etc. by rigid line.
As shown in Figure 2, multifunctional combination instrument adopts full segment encode LCDs, and it comprises travel condition of vehicle district 1, battery temperature district 2, battery dump energy district 3, power of motor district 4, fault, this five regions of information of vehicles highlight 5.
Car running computer CPU obtains the battery electric quantity signal input of electrokinetic cell control unit by CAN, and process is converted into battery electric quantity surplus value, is presented at battery dump energy district 3 with the form correspondence of progress lattice.If there is the situation that battery electric quantity is low, battery electric quantity alarm lamp prompting driver also can be lighted in time.
Car running computer CPU obtains the battery temperature signal input of electrokinetic cell control unit by CAN, and process is converted into battery temperature value, is presented at battery temperature district 2 with the form correspondence of progress lattice.When battery temperature is too high, when potential risk is produced to vehicle, battery temperature alarm lamp prompting driver can be lighted in time.
Car running computer CPU obtains the motor realtime power signal input of drive motor control unit by CAN, and process is converted into power of motor value, is presented at power of motor district 4 with the form correspondence of progress lattice.Display mode divides two kinds, and when drive motor is electronic state of exerting oneself, progress lattice show in real time with the real-time input of cw according to power signal; When drive motor is that generated energy reclaims state, progress lattice show in real time with the input of conter clockwise according to generating state.
Battery electric quantity surplus value is sent to car load multiple-energy-source control unit by CAN line by electrokinetic cell control unit in real time, car load multiple-energy-source control unit is by gathering speed of a motor vehicle variable quantity, the throttle variable quantity information of accumulation in setting-up time, real-time calculating also revises current energy consumption, and being converted into residue can continual mileage.Car running computer CPU obtains travel condition of vehicle ready signal, the input of residual running mileage signal of car load multiple-energy-source control unit by CAN, the form being separately converted to ready indicator lamp and digital value is presented at travel condition of vehicle district in real time, along with the change of battery dump energy surplus value, residual running mileage real-time update reminds driver.Car running computer CPU obtains vehicle speed signal and the gear signal input of anti-blocking brake system and gear box control unit by CAN, processes the form being converted into digital value and gear letter respectively and is presented at travel condition of vehicle district 1 in real time.
Car running computer CPU by CAN obtain respectively anti-blocking brake system, electric powered steering control unit, car load multiple-energy-source control unit, electrokinetic cell control unit, DC the braking system faults information of CD control unit, electric powered steering failure message, complete vehicle fault information, charging status information, 12V electric power system failure message input, the form that process is converted into indicator lamp is presented at fault, information of vehicles highlight 5 real-time reminding driver.Its concrete mode is:
When safety airbag wire harness connection occurs that short circuit or crash sensor break down, air bag control unit sends breakdown signal to instrument by CAN line, lights safety air bag not under command light;
When brake-fluid level is too low or in travelling, braking during standstill is not removed, instrument can be sent a signal to by rigid line, light brake fault lamp;
When safety failure appears in car load, as: when vehicle generation leaky or battery management unit test power battery insulation resistance do not meet the demands, by CAN line, this signal is sent to car load multiple-energy-source control unit, car load safety failure signal is transmitted to instrument by described car load multiple-energy-source control unit, lights complete vehicle fault lamp;
When there is vehicle speed signal loss, electric boosting steering system torque sensor fault, electric booster steering system controller sends breakdown signal to instrument by CAN line, lights electric boosting steering system not under command light;
After brake switch, wheel speed sensors, antiblock device break down, breakdown signal directly sends to instrument by rigid line, lights antiblock device not under command light.And vehicle enters battery saving mode, the acceleration capability of vehicle and maximum speed are limited.
When battery electric quantity is lower than threshold value, car load multiple-energy-source control unit passes through the limited signal of CAN line sending performance to instrument, lights limited performance lamp;
When motor control unit temperature exceedes threshold value, send breakdown signal to instrument by CAN line, light motor overheating alarm lamp;
When the 12V low potential source of electronlmobil breaks down, then send breakdown signal to instrument by CAN line, light 12V accumulator failure lamp.
The above, be only the specific embodiment of the present invention, it should be pointed out that any those of ordinary skill in the art are in the technical scope disclosed by the present invention, the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (7)
1. the control method of an electronlmobil multifunctional combination instrument, it is characterized in that: battery electric quantity surplus value is sent to car load multiple-energy-source control unit by CAN line by the electrokinetic cell control unit of vehicle in real time, described car load multiple-energy-source control unit is by gathering speed of a motor vehicle variable quantity, the throttle variable quantity information of accumulation in setting-up time, real-time calculating also revises current energy consumption, being converted into residue can continual mileage, transfers to instrument display translation by CAN line.
2. the control method of electronlmobil multifunctional combination instrument as claimed in claim 1, is characterized in that: the car running computer of vehicle obtains the battery temperature of electrokinetic cell control unit by CAN line, change into battery temperature value and transfer to instrument display translation.
3. the control method of electronlmobil multifunctional combination instrument as claimed in claim 2, is characterized in that: instrument viewing area comprises travel condition of vehicle display space, battery temperature display space, battery dump energy display space, power of motor display space and fault, information of vehicles highlight;
Described car running computer obtains the battery electric quantity of electrokinetic cell control unit by CAN line, exports battery dump energy display space to after this battery electric quantity is changed into battery electric quantity surplus value;
Described car running computer obtains the motor realtime power of drive motor control unit by CAN line, is converted into power of motor value and exports power of motor display space to;
Described car running computer obtains vehicle speed signal and the gear signal of anti-blocking brake system and gear box control unit by CAN line, changes into vehicle speed value and gear information, can export travel condition of vehicle display space together to by continual mileage with residue;
Described battery temperature value exports battery temperature display space to;
The fault of described instrument, information of vehicles highlight are provided with not under command light corresponding to associated components each with vehicle, when associated components et out of order, send not under command light and light enable signal, light not under command light to instrument.
4. the control method of electronlmobil multifunctional combination instrument as claimed in claim 3, is characterized in that, described power of motor value is with the display of the form of progress lattice, and its procedure for displaying is:
When drive motor is electronic state of exerting oneself, progress lattice show in real time with the real-time input of cw according to power signal;
When drive motor is that generated energy reclaims state, progress lattice show in real time with the input of conter clockwise according to generating state.
5. the control method of electronlmobil multifunctional combination instrument as claimed in claim 3, it is characterized in that, the concrete mode that described instrument fault, information of vehicles highlight light not under command light is:
When safety airbag wire harness connection occurs that short circuit or crash sensor break down, air bag control unit sends breakdown signal to instrument by CAN line, lights safety air bag not under command light;
When brake-fluid level is too low or in travelling, braking during standstill is not removed, instrument can be sent a signal to by rigid line, light brake fault lamp;
When safety failure appears in car load, by CAN line, this signal is sent to car load multiple-energy-source control unit, car load safety failure signal is transmitted to instrument by described car load multiple-energy-source control unit, lights complete vehicle fault lamp;
When there is vehicle speed signal loss, electric boosting steering system torque sensor fault, electric booster steering system controller sends breakdown signal to instrument by CAN line, lights electric boosting steering system not under command light;
After brake switch, wheel speed sensors, antiblock device break down, breakdown signal directly sends to instrument by rigid line, lights antiblock device not under command light;
When battery electric quantity is lower than threshold value, car load multiple-energy-source control unit passes through the limited signal of CAN line sending performance to instrument, lights limited performance lamp;
When motor control unit temperature exceedes threshold value, send breakdown signal to instrument by CAN line, light motor overheating alarm lamp;
When the 12V low potential source of electronlmobil breaks down, then send breakdown signal to instrument by CAN line, light 12V accumulator failure lamp.
6. the control method of electronlmobil multifunctional combination instrument as claimed in claim 5, it is characterized in that, described car load occurs that safety failure comprises: vehicle generation leaky or battery management unit test power battery insulation resistance do not meet the demands.
7. the control method of electronlmobil multifunctional combination instrument as claimed in claim 5, is characterized in that: when battery electric quantity is lower than threshold value, vehicle enters battery saving mode, limits the acceleration capability of vehicle and maximum speed.
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| CN201510753335.5A CN105253020B (en) | 2015-11-05 | 2015-11-05 | A kind of control method of electric automobile multifunctional combination instrument |
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| CN201510753335.5A CN105253020B (en) | 2015-11-05 | 2015-11-05 | A kind of control method of electric automobile multifunctional combination instrument |
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Cited By (12)
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| CN106740270A (en) * | 2017-02-24 | 2017-05-31 | 北京新能源汽车股份有限公司 | A kind of display methods of output power of motor percentage, device and electric automobile |
| CN106828124A (en) * | 2017-02-15 | 2017-06-13 | 武汉科技大学 | A kind of electric automobile |
| CN107284239A (en) * | 2016-04-01 | 2017-10-24 | 纳恩博（北京）科技有限公司 | Car status information processing method, device and vehicle |
| CN107444182A (en) * | 2017-09-15 | 2017-12-08 | 苏州易换骑网络科技有限公司 | Electrombile control method and interchangeable electric electric car |
| CN107599868A (en) * | 2017-09-13 | 2018-01-19 | 无锡商业职业技术学院 | A kind of transmission system of electric automobile |
| CN108556997A (en) * | 2018-06-29 | 2018-09-21 | 南京奥特博机电科技有限公司 | A kind of electric assisted bicycle and its driving method |
| CN109501699A (en) * | 2018-11-12 | 2019-03-22 | 安徽江淮汽车集团股份有限公司 | A kind of combination instrument alarm strategy for taking into account CAN driving and hard signal driving |
| CN110901559A (en) * | 2019-11-09 | 2020-03-24 | 南京金龙客车制造有限公司 | Redundancy deviation rectifying structure and method for speed and accumulated mileage of combination instrument |
| CN112078515A (en) * | 2020-08-05 | 2020-12-15 | 东风电驱动系统有限公司 | TFT screen alarm lamp detection method and system |
| CN112706617A (en) * | 2021-01-13 | 2021-04-27 | 奇瑞新能源汽车股份有限公司 | Method for displaying endurance mileage of electric automobile |
| CN113771629A (en) * | 2020-06-10 | 2021-12-10 | 上海墨泉网络科技有限公司 | Low-power reminding method and system for electric automobile |
| CN113242639B (en) * | 2021-04-22 | 2024-04-26 | 东风电驱动系统有限公司 | Soft and hard dual-control and mutual isolation protection circuit of automobile instrument alarm lamp and working method |
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| CN109501699A (en) * | 2018-11-12 | 2019-03-22 | 安徽江淮汽车集团股份有限公司 | A kind of combination instrument alarm strategy for taking into account CAN driving and hard signal driving |
| CN110901559A (en) * | 2019-11-09 | 2020-03-24 | 南京金龙客车制造有限公司 | Redundancy deviation rectifying structure and method for speed and accumulated mileage of combination instrument |
| CN113771629A (en) * | 2020-06-10 | 2021-12-10 | 上海墨泉网络科技有限公司 | Low-power reminding method and system for electric automobile |
| CN112078515A (en) * | 2020-08-05 | 2020-12-15 | 东风电驱动系统有限公司 | TFT screen alarm lamp detection method and system |
| CN112706617A (en) * | 2021-01-13 | 2021-04-27 | 奇瑞新能源汽车股份有限公司 | Method for displaying endurance mileage of electric automobile |
| CN113242639B (en) * | 2021-04-22 | 2024-04-26 | 东风电驱动系统有限公司 | Soft and hard dual-control and mutual isolation protection circuit of automobile instrument alarm lamp and working method |
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