CN103883406A - Automatic ignition and flameout control method for engine of passenger car - Google Patents
Automatic ignition and flameout control method for engine of passenger car Download PDFInfo
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- CN103883406A CN103883406A CN201410127988.8A CN201410127988A CN103883406A CN 103883406 A CN103883406 A CN 103883406A CN 201410127988 A CN201410127988 A CN 201410127988A CN 103883406 A CN103883406 A CN 103883406A
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Abstract
The invention provides an automatic ignition and flameout control method for an engine of a passenger car. The method includes the following steps that when a whole car controller detects that the engine is running, the work condition information of the engine and the running state information of the passenger car which are received in real time are analyzed and judged, a flameout instruction is sent to an ECU of the engine, and the engine is controlled to perform flameout; when the whole car controller detects that the engines stops, safety belt connection or disconnection information, clutch pedal information and accelerator pedal information which are received in real time are analyzed and judged, an ignition instruction is sent to the ECU of the engine, and the engine is controlled to perform ignition. With the method, by judging the state and the running environment of the passenger car and the intention of a driver, the flameout instruction and the ignition instruction are automatically sent, the idling running time of the engine is shortened under the condition that use is not affected, and the consumption of fuel and the quantity of discharged pollutants are reduced.
Description
Technical field
The present invention relates to Bus Technology field, specifically a kind of bus engine automatic ignition and flame-out controlling method.
Background technique
Along with domestic fuel-firing gas-firing rise in price, bus market is more and more higher to the requirement of passenger vehicle per 100 km fuel consumption.Passenger vehicle mainly realizes by alleviating the systems such as passenger vehicle weight, reduction passenger vehicle windage, adjustment engine power curve, optimizing power assembly the object that reduces passenger vehicle oil consumption at present.Passenger vehicle driver is in the time waiting red light, traffic congestion, and motor is idle running always, causes unnecessary fuel consumption and exhaust emissions.Some driver is by manual flame-out motor, then reduces the waste of fuel while waiting red light or traffic congestion by key ato unit, while often traffic congestion, needs frequent operation just can reach fuel-efficient object on urban district red light, the peak of driving a vehicle.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of bus engine automatic ignition and flame-out controlling method, can realize and ensureing under the prerequisite of the normal operation of driver safety and passenger vehicle by the method, by the judgement to passenger vehicle state, passenger vehicle running environment, driver intention, automatically send flame-out, firing command.
Technological scheme of the present invention is:
A kind of bus engine automatic ignition and flame-out controlling method, comprise the following steps:
(1) entire car controller detects that motor is in the time of running state, analyzes judgement by the engine operating condition information to real-time reception and passenger vehicle running state information, sends flame-out instruction to Engine ECU, and control engine is flame-out:
(2) entire car controller detects that motor is in the time of halted state, analyzes judgement by safety strip connecting valve information, clutch pedal information and gas pedal information to real-time reception, sends firing command to Engine ECU, control engine igniting.
Described bus engine automatic ignition and flame-out controlling method, described step (1), specifically comprises the following steps:
(11) detect engine coolant temperature, engine motor oil temperature and vehicle speed signal;
(12) judge whether engine coolant temperature, engine motor oil temperature and the speed of a motor vehicle meet pre-conditioned, if so, perform step (13), if not, return to step (11);
(13) detect hand-braking signal, judge whether in hand-braking state, if so, perform step (17), if not, execution step (14);
(14) detect turn signal, judge whether attonity of steering wheel, if so, perform step (15), if not, return to step (13);
(15) detect clutch pedal and accelerator pedal signal, judge the whether all no signal output of clutch pedal and gas pedal, if so, perform step (16), if not, return to step (13);
(16) detect gearbox-gear signal, judge that whether gearbox is in non-reverse gear state, if so, perform step (17), if not, return to step (13);
(17) inquire about the time that sent flame-out instruction last time, whether the time lag that judging distance sent flame-out instruction last time is greater than t1, if so, performs step (18), if not, returns to step (13);
(18) judge that whether the passenger vehicle running state information receiving in the t2 time is unchanged, if so, send flame-out instruction to Engine ECU, if not, return to step (13).
Described bus engine automatic ignition and flame-out controlling method, described step (2), specifically comprises the following steps:
(21) detect safety strip connecting valve signal;
(22) judge whether alarm free signal of safety strip connecting valve, if so, execution step (23), if not, returns to step (21);
(23) detect clutch pedal and accelerator pedal signal;
(24) judge whether clutch pedal or gas pedal have signal output, if so, send firing command to Engine ECU, if not, return to step (23).
Described bus engine automatic ignition and flame-out controlling method, further comprising the steps of:
(1) open hand switch;
(2) testing environment temperature and cell voltage signal;
(3) judge whether ambient temperature and battery voltage meet pre-conditioned, if so, perform step (4), if not, return to step (2);
(4) detect gearbox-gear signal;
(5) judge that gearbox, whether in reverse gear state, if so, returns to step (4), if not, execution step (6);
(6) detect throttle signal, judge that motor, whether in running state, if so, carries out auto extinguishing control to motor, if not, motor is carried out to automatic ignition control.
Described bus engine automatic ignition and flame-out controlling method, in described step (12), the pre-conditioned of described engine coolant temperature, engine motor oil temperature and the speed of a motor vehicle is: engine coolant temperature >=70 DEG C, engine motor oil temperature >=80 DEG C, the speed of a motor vehicle=0km/h.
Described bus engine automatic ignition and flame-out controlling method, in described step (17), t1=10s.
Described bus engine automatic ignition and flame-out controlling method, in described step (18), t2=2s.
Described bus engine automatic ignition and flame-out controlling method, in described step (3), the pre-conditioned of described battery voltage and ambient temperature is: 0 DEG C≤ambient temperature≤35 DEG C, battery voltage >=20V.
As shown from the above technical solution, the present invention is by the judgement to passenger vehicle state, passenger vehicle running environment, driver intention, automatically send flame-out, firing command, in the situation that not affecting use, reduce the idle time of motor, reduce fuel consumption and pollutant discharge amount; When use, driver only need open hand switch, without other operation, can realize the automatic control of engine misses and igniting.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of realizing the inventive method;
Fig. 2 is that automatic ignition of the present invention and shutdown systems start determination methods flow chart;
Fig. 3 is engine misses controlling method flow chart of the present invention;
Fig. 4 is engine operating condition determination methods flow chart of the present invention;
Fig. 5 is passenger vehicle running state determination methods flow chart of the present invention;
Fig. 6 is motor protection determination methods flow chart of the present invention;
Fig. 7 is anti-erroneous judgement method flow diagram of the present invention;
Fig. 8 is engine ignition control method flow chart of the present invention.
Embodiment
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
A kind of bus engine automatic ignition and flame-out controlling method, be applied on the passenger vehicle that comprises motor 1, Engine ECU 2, entire car controller 3, signal generator 3, sensor 4, hand switch 5, comprises the following steps:
S1, as shown in Figure 2, driver only need to open hand switch, can enter " automatic ignition and shutdown systems start module " of entire car controller, compare judgement by collecting the information such as storage battery electric weight, ambient temperature, realize the automatic startup of system and close.
1, starting module is by the manual switch control of driver, and when driver opens after hand switch, this module is carried out initialization.
2, collect passenger vehicle ambient temperature by environment temperature sensor, by voltage sensor senses battery voltage assessment storage battery electric weight situation.
3, compare judgement:
A, when ambient temperature (0 DEG C≤ambient temperature≤35 DEG C) between 0 DEG C and 35 DEG C, and battery voltage is not less than 20V(battery voltage >=20V) time, enter next stage;
B, when ambient temperature is lower than 0 DEG C or during higher than 35 DEG C, in car, the electrical equipment such as heating installation, air-conditioning is enabled, vehicle power consumption strengthens, according to safe priority principle, entire car controller stops to Engine ECU sending flame-out or firing command, return data collection phase;
In the time that car load battery voltage is less than 20V, cause motor to start for preventing that electric weight is not enough, entire car controller stops sending flame-out or firing command, return data collection phase to Engine ECU;
4, detect gearbox-gear signal, when gearbox is during in reverse gear gear, entire car controller stops sending flame-out or firing command to Engine ECU;
5, detect throttle signal, judge engine operating state:
A, motor, in running state, enter engine misses control module;
B, motor, in halted state, enter engine ignition control module.
S2, as shown in Figure 3, engine misses control module is by engine operating condition information and the passenger vehicle running state information of collecting are analyzed to judgement, realization is stopped working motor when needed to reach fuel-efficient object.
Engine misses control module comprises engine operating condition judgement, the judgement of passenger vehicle running state, motor protection judgement, anti-erroneous judgement four-stage.
1, as shown in Figure 4, engine operating condition judges the stage:
Engine operating condition information comprises engine coolant temperature, engine motor oil etc.Coolant temperature is too low can reduce engine efficiency, increase fuel consumption; Engine motor oil temperature is too low, and engine oil viscosity can increase, and causes engine lubrication weak effect, wearing and tearing to increase.So only have motor in the time of good operating conditions, engine misses control module just can enter passenger vehicle running state and judge the stage.
1-1 collects engine coolant temperature, engine motor oil temperature information;
1-2 compares judgement:
A, engine coolant temperature are more than or equal to and when 70 DEG C and engine motor oil temperature are more than or equal to 80 DEG C, enter passenger vehicle running state and judge the stage, store engine operating condition information simultaneously and inquire about for the later stage;
B, engine coolant temperature are less than 70 DEG C or engine motor oil temperature and are less than 80 DEG C, return engine work information collection phase.
2, as shown in Figure 5, passenger vehicle running state judges the stage:
Passenger vehicle running state information comprises the speed of a motor vehicle, braking state, gas pedal state, clutch pedal state, gearbox-gear, steering wheel action.By various information, judging that vehicle meets after burn-out condition, confirm to enter the motor protection judgement stage.
2-1, engine operating condition judgement check vehicle speed signal after passing through;
2-2, compare judgement:
When a, the speed of a motor vehicle equal 0km/h, enter next step detection;
When b, the speed of a motor vehicle are more than or equal to 0km/h, return to vehicle speed signal and detect;
2-3, hand-braking input;
2-4, compare judgement:
A, parking brake, in braking state, illustrate that vehicle is in wait state, enter the motor protection judgement stage;
B, parking brake, in non-braking state, carry out next step detection;
2-5, turn signal detect;
2-6, compare judgement:
A, the output of steering wheel attonity signal, enter next step detection;
B, steering wheel have actuating signal output, return to hand-braking input;
2-7, clutch pedal signal and accelerator pedal signal detect;
2-8, compare judgement:
A, clutch pedal and gas pedal do not have signal output simultaneously, enter next step detection;
B, clutch pedal or gas pedal have signal output, return to hand-braking input;
2-9, the identification of gearbox-gear signal;
2-10, compare judgement:
A, gearbox, in reverse gear gear, return to hand-braking input;
B, gearbox are in non-reverse gear gear, and storage passenger vehicle running state information, for later stage inquiry, is confirmed to enter the motor protection judgement stage simultaneously.
3, as shown in Figure 6, the motor protection judgement stage:
The passenger vehicle running state judgement stage passes through, and represents that passenger vehicle itself has possessed the condition of flame-out fuel-economizing.But in order to protect motor, flame-out instruction is received in prevention in the time that motor does not reach stabilized (steady-state) speed, minimum burnout time interval is set motor is protected.The setting at minimum burnout time interval, except having the effect of protection, also has certain effect for anti-erroneous judgement.
After 3-1, the judgement of passenger vehicle running state are passed through, record the judgement of passenger vehicle running state by the moment, for relatively judgement;
3-2, inspection historical data are mainly the last flame-out instruction delivery times of inquiry;
3-3, compare judgement:
A, passenger vehicle running state judge the stage by the moment apart from last time flame-out instruction delivery time be less than or equal to 10 seconds, return and detect hand-braking signal;
B, passenger vehicle running state judge the stage by the moment apart from last time flame-out instruction delivery time be greater than 10 seconds, confirm enter the anti-erroneous judgement stage.
4, as shown in Figure 7, the anti-erroneous judgement stage:
The anti-erroneous judgement stage is mainly preventing driver in the time of the operation of change passenger vehicle running statees such as shifting gears, turn to, and middle appearance of short duration causes erroneous judgement without the operating time.
4-1, motor protection judgement stage start timing after passing through, for relatively judgement;
4-2, detect the data situation of each measuring point;
4-3, compare judgement:
A, in 2 seconds, the data of each measuring point do not change, and send flame-out instruction;
B, in 2 seconds, the data of each measuring point change, and return and detect hand-braking signal.
For protection motor, engine coolant temperature is lower than 70 DEG C, or engine motor oil temperature is during lower than 80 DEG C, and engine misses control module stops sending flame-out instruction to Engine ECU; It is minimum 10 seconds that engine misses control module sends flame-out command interval set of time to Engine ECU, simultaneously the reason such as shift gears, turn to for preventing driver causes engine misses control module to judge by accident, confirm to send after flame-out instruction in engine misses control module, in time delay 2 seconds, in the unchanged situation of various input signals, send again flame-out instruction.
Motor is in the time of running state, and engine misses control module receives vehicle speed sensor signal, in the time that the speed of a motor vehicle is zero, detects parking brake state, when hand-braking, sends flame-out instruction to Engine ECU; When parking brake is not braked, detect steering wheel action, steering wheel is during without go to action, the equal no signal output of gas pedal and clutch pedal, and gearbox is in the time of non-reverse gear gear simultaneously, and engine misses control module sends flame-out instruction to Engine ECU.
S3, as shown in Figure 8, engine ignition control module is under engine stop running state, judges driver intention by clutch pedal and accelerator pedal signal, automatically sends firing command ato unit.Engine ignition control module is divided into security check phase and igniting judgement stage.
1, detect safety strip connecting valve signal;
2, compare judgement:
A, safety strip connecting valve alarm free signal, carry out next step detection;
B, safety strip connecting valve have alarm signal, return to previous step and detect safety strip connecting valve signal;
3, detect clutch pedal and accelerator pedal signal;
4, compare judgement:
A, clutch pedal or gas pedal have signal output, send firing command ato unit;
The equal no signal output of b, clutch pedal and gas pedal, returns to previous step and detects clutch pedal and accelerator pedal signal.
In order to ensure safety, under parking, engine misses state, engine ignition control module is by detecting seatbelt wearing state, under driver does not fasten seat belts situation, engine ignition control module stops sending firing command to Engine ECU, and motor cannot start; In the correct wear safety belt situation of driver, driver gently steps on the gas or clutch pedal sends signal to engine ignition control module, and engine ignition control module receives signal, sends firing command, ato unit to Engine ECU.
The above mode of execution is only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skill in the art make technological scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (8)
1. bus engine automatic ignition and a flame-out controlling method, is characterized in that, comprises the following steps:
(1) entire car controller detects that motor is in the time of running state, analyzes judgement by the engine operating condition information to real-time reception and passenger vehicle running state information, sends flame-out instruction to Engine ECU, and control engine is flame-out:
(2) entire car controller detects that motor is in the time of halted state, analyzes judgement by safety strip connecting valve information, clutch pedal information and gas pedal information to real-time reception, sends firing command to Engine ECU, control engine igniting.
2. bus engine automatic ignition according to claim 1 and flame-out controlling method, is characterized in that, described step (1), specifically comprises the following steps:
(11) detect engine coolant temperature, engine motor oil temperature and vehicle speed signal;
(12) judge whether engine coolant temperature, engine motor oil temperature and the speed of a motor vehicle meet pre-conditioned, if so, perform step (13), if not, return to step (11);
(13) detect hand-braking signal, judge whether in hand-braking state, if so, perform step (17), if not, execution step (14);
(14) detect turn signal, judge whether attonity of steering wheel, if so, perform step (15), if not, return to step (13);
(15) detect clutch pedal and accelerator pedal signal, judge the whether all no signal output of clutch pedal and gas pedal, if so, perform step (16), if not, return to step (13);
(16) detect gearbox-gear signal, judge that whether gearbox is in non-reverse gear state, if so, perform step (17), if not, return to step (13);
(17) inquire about the time that sent flame-out instruction last time, whether the time lag that judging distance sent flame-out instruction last time is greater than t1, if so, performs step (18), if not, returns to step (13);
(18) judge that whether the passenger vehicle running state information receiving in the t2 time is unchanged, if so, send flame-out instruction to Engine ECU, if not, return to step (13).
3. bus engine automatic ignition according to claim 1 and flame-out controlling method, is characterized in that, described step (2), specifically comprises the following steps:
(21) detect safety strip connecting valve signal;
(22) judge whether alarm free signal of safety strip connecting valve, if so, execution step (23), if not, returns to step (21);
(23) detect clutch pedal and accelerator pedal signal;
(24) judge whether clutch pedal or gas pedal have signal output, if so, send firing command to Engine ECU, if not, return to step (23).
4. bus engine automatic ignition according to claim 1 and flame-out controlling method, is characterized in that, further comprising the steps of:
(1) open hand switch;
(2) testing environment temperature and cell voltage signal;
(3) judge whether ambient temperature and battery voltage meet pre-conditioned, if so, perform step (4), if not, return to step (2);
(4) detect gearbox-gear signal;
(5) judge that gearbox, whether in reverse gear state, if so, returns to step (4), if not, execution step (6);
(6) detect throttle signal, judge that motor, whether in running state, if so, carries out auto extinguishing control to motor, if not, motor is carried out to automatic ignition control.
5. bus engine automatic ignition according to claim 2 and flame-out controlling method, it is characterized in that, in described step (12), the pre-conditioned of described engine coolant temperature, engine motor oil temperature and the speed of a motor vehicle is: engine coolant temperature >=70 DEG C, engine motor oil temperature >=80 DEG C, the speed of a motor vehicle=0km/h.
6. bus engine automatic ignition according to claim 2 and flame-out controlling method, is characterized in that, in described step (17), and t1=10s.
7. bus engine automatic ignition according to claim 2 and flame-out controlling method, is characterized in that, in described step (18), and t2=2s.
8. bus engine automatic ignition according to claim 4 and flame-out controlling method, is characterized in that, in described step (3), the pre-conditioned of described battery voltage and ambient temperature is: 0 DEG C≤ambient temperature≤35 DEG C, and battery voltage >=20V.
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| CN201410127988.8A CN103883406A (en) | 2014-04-01 | 2014-04-01 | Automatic ignition and flameout control method for engine of passenger car |
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| CN201410127988.8A CN103883406A (en) | 2014-04-01 | 2014-04-01 | Automatic ignition and flameout control method for engine of passenger car |
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| CN104196643A (en) * | 2014-08-29 | 2014-12-10 | 安徽江淮汽车股份有限公司 | Method and system for controlling idle speeds of engine |
| CN104192138A (en) * | 2014-08-19 | 2014-12-10 | 奇瑞汽车股份有限公司 | Engine stop method and system |
| CN105150847A (en) * | 2015-08-19 | 2015-12-16 | 武汉光谷西铂科技有限公司 | Protective device and method for preventing false start of vehicle |
| CN105774813A (en) * | 2014-12-19 | 2016-07-20 | 北汽福田汽车股份有限公司 | Control method and control device for hybrid automobile |
| CN106640393A (en) * | 2016-12-29 | 2017-05-10 | 浙江三装备有限公司 | Idling-stop system, method and device for crane |
| CN106658356A (en) * | 2016-09-28 | 2017-05-10 | 广东欧珀移动通信有限公司 | Connection method and device for bluetooth communication |
| CN109986974A (en) * | 2019-03-11 | 2019-07-09 | 汉腾汽车有限公司 | The temperature condition that a kind of electric car electricity drives energy regenerating judges algorithm |
| CN112918476A (en) * | 2021-03-19 | 2021-06-08 | 潍柴动力股份有限公司 | Vehicle control method and vehicle |
| CN113464287A (en) * | 2021-07-16 | 2021-10-01 | 潍柴雷沃重工股份有限公司 | Method and system for protecting engine and agricultural machine comprising engine |
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| CN112918476A (en) * | 2021-03-19 | 2021-06-08 | 潍柴动力股份有限公司 | Vehicle control method and vehicle |
| CN113464287A (en) * | 2021-07-16 | 2021-10-01 | 潍柴雷沃重工股份有限公司 | Method and system for protecting engine and agricultural machine comprising engine |
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Application publication date: 20140625 |