CN101323303A - Central coordinating method and coordinator for automobile control - Google Patents
Central coordinating method and coordinator for automobile control Download PDFInfo
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Abstract
The invention relates to a central coordination method used for vehicle controlling, which belongs to the field of vehicle electronic control technology. First, the output signals of the vehicle-bone electrical apparatus on vehicle bus are received and transformed into digital signals; according to the coordination control logic, the digital signals are classified and judged logically; the logically judged results is encoded according to the vehicle bus protocol, and the digital signals are obtained and transformed into control signals to the vehicle-bone electrical apparatus. The central coordinator comprises a vehicle-bone communication interface, a regulated power supply module, a communication interface circuit and a central processing unit. The central coordination method has the advantages that: the control logic of the coordinator is totally dependent from the internal control of each vehicle-bone electrical apparatus, thus avoiding the complexity of mutual restriction and mutual coordination when integrating the system, and causing each vehicle-bone electrical apparatus to be much simpler in separate designs; furthermore, the circuit result is simple and the coordination functions are more comprehensive.
Description
Technical field
The present invention relates to a kind of central coordination approach and combinator that is used for automobile control, belong to the auto electronic control technology field.
Background technology
From the angle of economical, dynamic property and traveling comfort, the electrical equipment on the modern automobile is more and more.Such as in order to improve traveling comfort, used automatic window, seat, back mirror or the like electrical equipment on the automobile, for energy savings, many power control systems have been increased, such as fuel injection control systems, OBD system, have catalytic oxidation system of controlled reset or the like, also become more and more at conventional electrical equipment such as electro-illumination, vehicle window defrosting, cleanings.
Automobile is done as a whole, needs the coordination of allomeric function, but along with the increasing of electrical equipment, the co-ordination relation between becomes and becomes increasingly complex mutually.Often need between the electrical equipment to carry out logic operation or signal transmission by the lead line, so whether the wire harness of modern automobile is complicated, length surpasses several kilometers, uses to surpass 200～300 connector.
Central controller in the existing automobile electric appliance system (or combinator), such as the central controller that is used for automotive networking (200520123917.7), the collection of signal, signal conditioning and be integrated in the signal processor to carrying out the defeated direct control of responsible control, the treater design of this central centralized control formula is complicated, the cost costliness, and coupled relation is more mutually between the electrical equipment, is not easy to safeguard; Such as the central coordinator in the multiplexed electrical system with central process unit and programmable control nodes (publication number CN1162777A), not special-purpose combinator, but arbitrarily specify the treater of any one intelligent electrical apparatus to handle rapport again.
Summary of the invention
The objective of the invention is to propose a kind of central coordination approach and combinator that is used for automobile control, to solve the co-operative control between the car electrics, to guarantee the intercoordination of interaction relation, restricting relation, substitutional relation and indirect control relation between the electrical equipment.
The central coordination approach that is used for automobile control that the present invention proposes may further comprise the steps:
(1) the output signal L1 and the H1 of vehicle mounted electrical apparatus on the vehicle-mounted bus of reception.
(2) above-mentioned vehicle mounted electrical apparatus output signal is converted to digital signal S1;
(3) according to the co-operative control logic, the above-mentioned digital signal S1 that reads is classified and logic determines, the logic determines result is encoded, obtain digital signal S2 according to vehicle-mounted bus protocol, and digital signal S2 is converted to control signal to vehicle mounted electrical apparatus, detailed process is:
(a) classification becomes combined switch signal, back starting switch signal, flame-out signal, vehicle speed signal, auxiliary braking system signal, engine rotational speed signal, gear signal according to the automobile bus agreement with the digital signal S1 that reads, car light status signal, rear door signal, vehicle door status signal, seat status signal and lock status signal, brake lamp breakdown signal, combined switch wherein comprises key switch, little light switch, main furnace building light switch, passing light switch, adverse-weather lamp switch and fog tail lamp switch;
(b) above-mentioned sorted digital signal S1 is carried out logic determines respectively, and according to the logic determines result, to the corresponding electric appliance transmitting control commands, detailed process is:
Open, arrive the driving shelves when key switch is in, when pressing danger button or pressing any state of opening in the car door button, send closure signal to power relay;
When main furnace building light switch or passing light switch when opening, if any one status signal is for closing in the status signal of side lamp, position lamp or flank indicator, then the while is sent start signal to side lamp, position lamp and flank indicator;
When current fog lamp switch is unlatching,, then simultaneously send start signal to side lamp, position lamp and flank indicator if any one status signal is for closing in the status signal of side lamp, position lamp or flank indicator;
When the fog tail lamp switch when opening, if any one in side lamp, position lamp, flank indicator, country beam and passing light and the adverse-weather lamp be when closing, then the while is sent start signal to side lamp, position lamp, flank indicator, passing light, adverse-weather lamp;
When key switch was in startup, if the gear of small passenger car is a neutral gear, oil mass was greater than 1%, and engine speed then sends starting command to starter less than 200 rev/mins;
When key switch was in startup, if the passenger vehicle gear is a neutral gear, oil mass was greater than 1%, and engine speed is less than 200 rev/mins, and the rear door signal then sends starting command to starter for closing;
When the back starting switch signal of passenger vehicle was startup, if the passenger vehicle gear is a neutral gear, oil mass was greater than 1%, and engine speed then sends startup command to starter less than 200 rev/mins;
When the back flameout switch signal of passenger vehicle when flame-out, if engine speed greater than 200 rev/mins, then sends flame-out order to engine controller;
When the brake switch signal is that closure or auxiliary braking system signal are work, then send open command to brake lamp; After brake lamp sent open command, if the brake lamp breakdown signal is for opening circuit or short circuit, then the lampet to tailstock portion sent open command;
When the vehicle door status of passenger vehicle for opening, and the flank indicator status signal then sends open command to gate light for opening; When the vehicle door status of passenger vehicle when closing, if car door is in open mode, then send shutdown command to car door; If vehicle door status is for closing, and the flank indicator status signal then sends shutdown command to gate light for opening, and picks up counting from closed door, if the vehicle door status signal still is in unlatching in setting-up time, then once more to car door transmission open command;
For the car that automatic gull wing door is housed, when opening car door, at first send unlock command, when the lock status signal is unlatching, send open command to car door to lock, when the vehicle door status signal is unlatching, simultaneously send backward command and send reset command, when the seat signal puts in place for retreating, then send seat and stop backward command to lock to seat, when the lock status signal when resetting, then send lock and stop the return order; When closed door, send advance command to seat, when the seat status signal puts in place for advancing, then send simultaneously and halt order and send shutdown command to car door to seat, when the vehicle door status signal when closing, then send the phase down order to car door;
When anti-locking system for car is worked, auxiliary braking system is sent the order of forbidding work, when anti-locking system for car is not worked, then send the driver's operation instruction to auxiliary braking system; When scrubber cleans front windshield, send the windscreen wiper order to wiper, and pick up counting, behind setting-up time, cease and desist order to the wiper transmission;
(c) according to vehicle-mounted bus protocol mentioned order is encoded, and the digital signal S2 after will encoding exports communication interface circuit to.
The central coordinator that is used for automobile control that the present invention proposes comprises:
The vehicle-carrying communication interface is used to receive the output signal L1 and the H1 of vehicle mounted electrical apparatus on the vehicle-mounted bus, and this output signal is sent to communication interface circuit;
Power module of voltage regulation after being used for obtaining 12 volts of voltages from above-mentioned vehicle-carrying communication interface, carries out voltage transitions, exports 5 volts of voltages, for communication interface circuit and central process unit provide power supply;
Communication interface circuit, be used to receive the output signal L1 and the H1 of above-mentioned vehicle-carrying communication interface, output signal L1 and H1 are converted into the digital signal S1 that central process unit can be discerned, and the digital signal S2 of reception central process unit, digital signal S2 is converted to control signal L2 and H2 to vehicle mounted electrical apparatus, the communication circuit interface is by level transferring chip (U1), common mode inhibition device (U4), Zener diode (D1 and D2) and electric capacity (C1～C5) form, wherein after electric capacity (C1) and Zener diode (D1) parallel connection, one end links to each other with signal L1, and the other end links to each other with ground; After electric capacity (C2) and Zener diode (D2) parallel connection, an end links to each other with signal H1, and the other end links to each other with ground; Signal L1 links to each other with the input end of common mode suppressing unit (U4) respectively with H1, the mouth of common mode inhibition device (U4) links to each other with the input end of level transferring chip (U1), one end of electric capacity (C3) links to each other with the mouth of common mode suppressing unit (U4), and the other end links to each other with ground; One end of electric capacity (C4) links to each other with another mouth of common mode suppressing unit (U4), and the other end of electric capacity (C4) links to each other with ground; Electric capacity (C5) is connected between VCC voltage and the ground, and the mouth of level transferring chip (U1) links to each other with S2 with signal S1;
Central process unit, be used to read the signal S1 of above-mentioned communication interface circuit, the signal that reads is classified and logic determines according to the automobile bus agreement, according to vehicle-mounted bus protocol above-mentioned logic determines result is encoded, obtain digital signal S2, and digital signal S2 is sent to communication interface circuit.
The central coordination approach and the combinator that are used for automobile control that the present invention proposes, its advantage is: adopt digital signal to carry out logic determines, have very big alerting ability.The complete independence of control logic in this combinator and the control of each vehicle mounted electrical apparatus in-to-in, this co-operative control mechanism that is independent of each electrical equipment makes vehicle intellectualized electrical equipment in the time of design-calculated separately, avoid the mutual restriction that the system integration runs into and the complexity of coordination, made each vehicle mounted electrical apparatus in independent design, become more simple.And this central coordinator is special-purpose, therefore compares with existing central coordinator, and the result is simple for its circuit, but coordination function is more comprehensive.
Description of drawings
The circuit block diagram of the central coordinator that Fig. 1 the present invention proposes.
The schematic circuit diagram of communication interface circuit in Fig. 2 combinator of the present invention.
The specific embodiment
The central coordination approach that is used for automobile control that the present invention proposes may further comprise the steps:
(1) receives the output signal L1 and the H1 of vehicle mounted electrical apparatus on the vehicle-mounted bus, and transmit control signal to vehicle mounted electrical apparatus;
(2) above-mentioned vehicle mounted electrical apparatus output signal is converted to digital signal S1;
(3) according to the co-operative control logic, the above-mentioned digital signal S1 that reads is classified and logic determines, the logic determines result is encoded, obtain digital signal S2 according to vehicle-mounted bus protocol, and digital signal S2 is converted to control signal to vehicle mounted electrical apparatus, detailed process is:
(a) classification becomes combined switch signal, back starting switch signal, flame-out signal, vehicle speed signal, auxiliary braking system signal, engine rotational speed signal, gear signal according to the automobile bus agreement with the digital signal S1 that reads, car light status signal, rear door signal, vehicle door status signal, seat status signal and lock status signal, brake lamp breakdown signal, combined switch wherein comprises key switch, little light switch, main furnace building light switch, passing light switch, adverse-weather lamp switch and fog tail lamp switch;
(b) above-mentioned sorted digital signal S1 is carried out logic determines respectively, and according to the logic determines result, to the corresponding electric appliance transmitting control commands, detailed process is:
Open, arrive the driving shelves when key switch is in, when pressing danger button or pressing any state of opening in the car door button, send closure signal to power relay;
When main furnace building light switch or passing light switch when opening, if any one status signal is for closing in the status signal of side lamp, position lamp or flank indicator, then the while is sent start signal to side lamp, position lamp and flank indicator;
When current fog lamp switch is unlatching,, then simultaneously send start signal to side lamp, position lamp and flank indicator if any one status signal is for closing in the status signal of side lamp, position lamp or flank indicator;
When the fog tail lamp switch when opening, if any one in side lamp, position lamp, flank indicator, country beam and passing light and the adverse-weather lamp be when closing, then the while is sent start signal to side lamp, position lamp, flank indicator, passing light, adverse-weather lamp;
When key switch was in startup, if the gear of small passenger car is a neutral gear, oil mass was greater than 1%, and engine speed then sends starting command to starter less than 200 rev/mins;
When key switch was in startup, if the passenger vehicle gear is a neutral gear, oil mass was greater than 1%, and engine speed is less than 200 rev/mins, and the rear door signal then sends starting command to starter for closing;
When the back starting switch signal of passenger vehicle was startup, if the passenger vehicle gear is a neutral gear, oil mass was greater than 1%, and engine speed then sends startup command to starter less than 200 rev/mins;
When the back flameout switch signal of passenger vehicle when flame-out, if engine speed greater than 200 rev/mins, then sends flame-out order to engine controller;
When the brake switch signal is that closure or auxiliary braking system signal are work, then send open command to brake lamp; After brake lamp sent open command, if the brake lamp breakdown signal is for opening circuit or short circuit, then the lampet to tailstock portion sent open command;
When the vehicle door status of passenger vehicle for opening, and the flank indicator status signal then sends open command to gate light for opening; When the vehicle door status of passenger vehicle when closing, if car door is in open mode, then send shutdown command to car door; If vehicle door status is for closing, and the flank indicator status signal then sends shutdown command to gate light for opening, and picks up counting from closed door, if the vehicle door status signal still is in unlatching in setting-up time, then once more to car door transmission open command;
For the car that automatic gull wing door is housed, when opening car door, at first send unlock command, when the lock status signal is unlatching, send open command to car door to lock, when the vehicle door status signal is unlatching, simultaneously send backward command and send reset command, when the seat signal puts in place for retreating, then send seat and stop backward command to lock to seat, when the lock status signal when resetting, then send lock and stop the return order; When closed door, send advance command to seat, when the seat status signal puts in place for advancing, then send simultaneously and halt order and send shutdown command to car door to seat, when the vehicle door status signal when closing, then send the phase down order to car door;
When anti-locking system for car is worked, auxiliary braking system is sent the order of forbidding work, when anti-locking system for car is not worked, then send the driver's operation instruction to auxiliary braking system; When scrubber cleans front windshield, send the windscreen wiper order to wiper, and pick up counting, behind setting-up time, cease and desist order to the wiper transmission;
(c) according to vehicle-mounted bus protocol mentioned order is encoded, and the digital signal S2 after will encoding exports communication interface circuit to.
The central coordinator that is used for automobile control that the present invention proposes, its circuit block diagram comprises as shown in Figure 1:
The vehicle-carrying communication interface is used to receive the output signal L1 and the H1 of vehicle mounted electrical apparatus on the vehicle-mounted bus, and this output signal is sent to communication interface circuit, can be a common automobile-used connector.
Power module of voltage regulation after being used for obtaining 12 volts of voltages from above-mentioned vehicle-carrying communication interface, carries out voltage transitions, exports 5 volts of voltages, for communication interface circuit and central process unit provide power supply; This module can be changeed the voltage stabilizing chip of 5V for a common 12V.
Communication interface circuit, be used to receive the output signal L1 and the H1 of above-mentioned vehicle-carrying communication interface, output signal L1 and H1 are converted into the digital signal S1 that central process unit can be discerned, and the digital signal S2 of reception central process unit, digital signal S2 is converted to control signal L2 and H2 to vehicle mounted electrical apparatus, the communication interface circuit schematic diagram as shown in Figure 2, the communication circuit interface is by level transferring chip (U1), common mode inhibition device (U4), Zener diode (D1 and D2) and electric capacity (C1～C5) form, wherein after electric capacity (C1) and Zener diode (D1) parallel connection, one end links to each other with signal L1, and the other end links to each other with ground; After electric capacity (C2) and Zener diode (D2) parallel connection, an end links to each other with signal H1, and the other end links to each other with ground; Signal L1 links to each other with the input end of common mode suppressing unit (U4) respectively with H1, the mouth of common mode inhibition device (U4) links to each other with the input end of level transferring chip (U1), one end of electric capacity (C3) links to each other with the mouth of common mode suppressing unit (U4), and the other end links to each other with ground; One end of electric capacity (C4) links to each other with another mouth of common mode suppressing unit (U4), and the other end of electric capacity (C4) links to each other with ground; Electric capacity (C5) is connected between VCC voltage and the ground, and the mouth of level transferring chip (U1) links to each other with S2 with signal S1; Working process is, the high pass link that signal L1 that receives from the vehicle mounted communication interface and H1 form through capacitor C 1 and C1, with D1, D2 amplitude limit link, become amplitude and be the standard signal between 1.5～3.5, this signal is through common mode inhibition device U4, filtering the common mode current signal between signal L1 and the H1, and use capacitor C 3 and C4 to carry out high pass once more, enter electrical level conversion chip U1 then, electrical level conversion chip is converted into signal S1 and S2 between 0 ~ 5V with this signal, and this signal can directly be read by central process unit.
Central process unit, be used to read the signal S1 of above-mentioned communication interface circuit, the signal that reads is classified and logic determines according to the automobile bus agreement, according to vehicle-mounted bus protocol above-mentioned logic determines result is encoded, obtain digital signal S2, and digital signal S2 is sent to communication interface circuit.
In one embodiment of the present of invention, the chip used model of above-mentioned power module of voltage regulation is LT1121, and U.S. Linear Tech produces; Level transferring chip U3, model is PCA82C250, PHILIPS Co. produces, common mode inhibition device U4, model is ZJYS, Japanese TDK company produces; The chip microprocessor model is MC68HC908GZ16, flies Si Kaer company by the U.S. and produces.Zener diode D1 and D2 model are P6KE6.8A, and Chinese milky way semiconductor company produces, and C1 ~ C14 is a conventional ceramic electric capacity, and wherein C1 ~ C4 is 100pF, and C5 is 0.1uF.
Claims (2)
1, a kind of central coordination approach that is used for automobile control is characterized in that this method may further comprise the steps:
(1) the output signal L1 and the H1 of vehicle mounted electrical apparatus on the vehicle-mounted bus of reception;
(2) above-mentioned vehicle mounted electrical apparatus output signal is converted to digital signal S1;
(3) according to the co-operative control logic, the above-mentioned digital signal S1 that reads is classified and logic determines, the logic determines result is encoded, obtain digital signal S2 according to vehicle-mounted bus protocol, and digital signal S2 is converted to control signal to vehicle mounted electrical apparatus, detailed process is:
(a) classification becomes combined switch signal, back starting switch signal, flame-out signal, vehicle speed signal, auxiliary braking system signal, engine rotational speed signal, gear signal according to the automobile bus agreement with the digital signal S1 that reads, car light status signal, rear door signal, vehicle door status signal, seat status signal and lock status signal, brake lamp breakdown signal, combined switch wherein comprises key switch, little light switch, main furnace building light switch, passing light switch, adverse-weather lamp switch and fog tail lamp switch;
(b) above-mentioned sorted digital signal S1 is carried out logic determines respectively, and according to the logic determines result, to the corresponding electric appliance transmitting control commands, detailed process is:
Open, arrive the driving shelves when key switch is in, when pressing danger button or pressing any state of opening in the car door button, send closure signal to power relay;
When main furnace building light switch or passing light switch when opening, if any one status signal is for closing in the status signal of side lamp, position lamp or flank indicator, then the while is sent start signal to side lamp, position lamp and flank indicator;
When current fog lamp switch is unlatching,, then simultaneously send start signal to side lamp, position lamp and flank indicator if any one status signal is for closing in the status signal of side lamp, position lamp or flank indicator;
When the fog tail lamp switch when opening, if any one in side lamp, position lamp, flank indicator, country beam and passing light and the adverse-weather lamp be when closing, then the while is sent start signal to side lamp, position lamp, flank indicator, passing light, adverse-weather lamp;
When key switch was in startup, if the gear of small passenger car is a neutral gear, oil mass was greater than 1%, and engine speed then sends starting command to starter less than 200 rev/mins;
When key switch was in startup, if the passenger vehicle gear is a neutral gear, oil mass was greater than 1%, and engine speed is less than 200 rev/mins, and the rear door signal then sends starting command to starter for closing;
When the back starting switch signal of passenger vehicle was startup, if the passenger vehicle gear is a neutral gear, oil mass was greater than 1%, and engine speed then sends startup command to starter less than 200 rev/mins;
When the back flameout switch signal of passenger vehicle when flame-out, if engine speed greater than 200 rev/mins, then sends flame-out order to engine controller;
When the brake switch signal is that closure or auxiliary braking system signal are work, then send open command to brake lamp; After brake lamp sent open command, if the brake lamp breakdown signal is for opening circuit or short circuit, then the lampet to tailstock portion sent open command;
When the vehicle door status of passenger vehicle for opening, and the flank indicator status signal then sends open command to gate light for opening; When the vehicle door status of passenger vehicle when closing, if car door is in open mode, then send shutdown command to car door; If vehicle door status is for closing, and the flank indicator status signal then sends shutdown command to gate light for opening, and picks up counting from closed door, if the vehicle door status signal still is in unlatching in setting-up time, then once more to car door transmission open command;
For the car that automatic gull wing door is housed, when opening car door, at first send unlock command, when the lock status signal is unlatching, send open command to car door to lock, when the vehicle door status signal is unlatching, simultaneously send backward command and send reset command, when the seat signal puts in place for retreating, then send seat and stop backward command to lock to seat, when the lock status signal when resetting, then send lock and stop the return order; When closed door, send advance command to seat, when the seat status signal puts in place for advancing, then send simultaneously and halt order and send shutdown command to car door to seat, when the vehicle door status signal when closing, then send the phase down order to car door;
When anti-locking system for car is worked, auxiliary braking system is sent the order of forbidding work, when anti-locking system for car is not worked, then send the driver's operation instruction to auxiliary braking system; When scrubber cleans front windshield, send the windscreen wiper order to wiper, and pick up counting, behind setting-up time, cease and desist order to the wiper transmission;
(c) according to vehicle-mounted bus protocol mentioned order is encoded, and the digital signal S2 after will encoding exports communication interface circuit to.
2, a kind of central coordinator that is used for automobile control is characterized in that this central coordinator comprises:
The vehicle-carrying communication interface is used to receive the output signal L1 and the H1 of vehicle mounted electrical apparatus on the vehicle-mounted bus, and this output signal is sent to communication interface circuit;
Power module of voltage regulation after being used for obtaining 12 volts of voltages from above-mentioned vehicle-carrying communication interface, carries out voltage transitions, exports 5 volts of voltages, for communication interface circuit and central process unit provide power supply;
Communication interface circuit, be used to receive the output signal L1 and the H1 of above-mentioned vehicle-carrying communication interface, output signal L1 and H1 are converted into the digital signal S1 that central process unit can be discerned, and receive the digital signal S2 of central process unit, digital signal S2 is converted to control signal L2 and H2 to vehicle mounted electrical apparatus; The communication circuit interface by level transferring chip (U1), common mode inhibition device (U4), Zener diode (D1 and D2) and electric capacity (C1～C5) form, wherein after electric capacity (C1) and Zener diode (D1) parallel connection, an end links to each other with signal L1, the other end links to each other with ground; After electric capacity (C2) and Zener diode (D2) parallel connection, an end links to each other with signal H1, and the other end links to each other with ground; Signal L1 links to each other with the input end of common mode suppressing unit (U4) respectively with H1, the mouth of common mode inhibition device (U4) links to each other with the input end of level transferring chip (U1), one end of electric capacity (C3) links to each other with the mouth of common mode suppressing unit (U4), and the other end links to each other with ground; One end of electric capacity (C4) links to each other with another mouth of common mode suppressing unit (U4), and the other end of electric capacity (C4) links to each other with ground; Electric capacity (C5) is connected between VCC voltage and the ground, and the mouth of level transferring chip (U1) links to each other with S2 with signal S1;
Central process unit, be used to read the signal S1 of above-mentioned communication interface circuit, the signal that reads is classified and logic determines according to the automobile bus agreement, according to vehicle-mounted bus protocol above-mentioned logic determines result is encoded, obtain digital signal S2, and digital signal S2 is sent to communication interface circuit.
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| CN103223940A (en) * | 2013-05-02 | 2013-07-31 | 北京航空航天大学 | Electric car coordination control system |
| CN103223940B (en) * | 2013-05-02 | 2015-12-02 | 北京航空航天大学 | A kind of electric car coordination control system |
| CN106408933A (en) * | 2015-07-30 | 2017-02-15 | 上海汽车集团股份有限公司 | Vehicle information monitoring method and system |
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| CN108601182A (en) * | 2018-06-14 | 2018-09-28 | 中车株洲电力机车有限公司 | A kind of vent external illumination control apparatus |
| CN108601182B (en) * | 2018-06-14 | 2020-08-25 | 中车株洲电力机车有限公司 | External illumination control device for locomotive |
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