CN203093954U - Four-in-one electric control unit - Google Patents
Four-in-one electric control unit Download PDFInfo
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- CN203093954U CN203093954U CN 201320085367 CN201320085367U CN203093954U CN 203093954 U CN203093954 U CN 203093954U CN 201320085367 CN201320085367 CN 201320085367 CN 201320085367 U CN201320085367 U CN 201320085367U CN 203093954 U CN203093954 U CN 203093954U
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Abstract
A four-in-one electric control unit comprises a high effective switch input circuit, a low effective switch input circuit, a controller, a left steering lamp output drive circuit, a right steering lamp output drive circuit, a rear fog lamp output drive circuit, a central control lock output drive circuit and a windscreen wiper output drive circuit. The high effective switch input circuit and the low effective switch input circuit are used for receiving the input of control switches of steering lamps, rear fog lamps, a central control lock and windscreen wipers of an automobile. A high level effective signal is output by the high effective switch input circuit and a low level effective signal is output by the low effective switch input circuit. The high level effective signal and the low level effective signal are received by the controller. The left steering lamp output drive circuit and the right steering lamp output drive circuit are used for controlling the left steering lamp and the right steering lamp respectively. The rear fog lamp output drive circuit is used for controlling the rear fog lamps. The central control lock output drive circuit is used for controlling the central control lock. The windscreen wiper output drive circuit is used for controlling the windscreen wipers. The output of the controller is connected with each drive circuit. According to the four-in-one electric control unit, the functions of the steering lamps, the stop/spraying of the windscreen wipers, the central control lock and the rear fog lamps are integrated in one electric control unit, the use of a complex relay is reduced, meanwhile, due to the fact that the relative functions are flexibly achieved through the controller, the updating performance and the reforming performance of a system are improved.
Description
Technical field
The utility model relates to the ECU (Electrical Control Unit) of automotive field, more specifically, relates to a kind of four unification ECU (Electrical Control Unit).
Background technology
Steering indicating light control is that vehicle is when turning or during lane change or the signal of interest device of other vehicles being informed during dangerous alarm; The windscreen wiper spray function is dust and the dirt that is used to remove on the vehicle windscreen, when windscreen wiper spray switch is effective, sprays water earlier and afterwards carries out the wiper action; The central controlled lock function is by lock four on vehicle of central controlled lock switch; Fog tail lamp is used for opening when travelling in fog day, so that can be discerned easily by front vehicle, reduces the risk that knocks into the back.
Along with market development, the automobile type configuration variation has become trend, and each disposes the shared as much as possible vehicle framework of vehicle can effectively reduce R﹠D costs.At low-cost vehicle, for steering indicating light, windscreen wiper intermittence/spray, central controlled lock and four kinds of functions of fog tail lamp, existing design plan mostly adopts rigid line to connect the complicated relay method that adds, being each function is transferred to corresponding relays pin via the mode of high and low level through rigid line with the on off state information of being gathered, and drives load by relay according to inner simple logic then and finishes function.Yet the function that the method for designing that this rigid line connection adds complicated relay system is finished is simpler relatively, and extensibility is not strong, and for the car load framework, relay is more, in case go wrong, checks inconvenience, has increased the after market maintenance difficulties.
Particularly, Fig. 1 is the steering indicating light relay circuit figure of prior art, is used to realize the control of steering indicating light.Pin 49 power connection 12V positive poles, pin 31 power connection negative poles, pin 49a connects lamp load.Normal flicker: when lamp load is 2*21W+5W or 4*21W+2*5W, relay control car light with (60-120) inferior/minute the frequency flash of light.Unusual flicker: when lamp load is 1*21W+5W (during a 21W bulb et out of order), relay control car light is with the indication of glimmering of 2 to 3 times flash rate.
Fig. 2 is the windscreen wiper intermittent duty relay circuit diagram of prior art, is used to realize the control of wiper.Pin 15 power connections, pin 31 ground connection, pin I position, pin 53e connect wiper switch, and pin 31b connects rain shaving electrical machine, and pin 53c connects washer switch.Intermittently scrape water: when pin 53e links to each other with rain shaving electrical machine by combined switch, when pin I obtains power line voltage by combined switch, internal relay moves immediately, pin 53e and pin 15 demand workings, rain shaving electrical machine rotates, obtain the return signal of 0V as pin 31b after inner relay discharge, pin 53e and pin 15 disconnect, behind 5.5S ± 1.5S, process above repeating.Washing function: when pin 53c obtains power line voltage, the internal relay action, pin 53e and 15 connects, rain shaving electrical machine begins to rotate, disappear and the 3.5S+2.5S that delays time again up to pin 53c power line voltage, and internal relay discharged after pin 31b obtained the return signal of 0VDC, and rain shaving electrical machine is out of service.
Fig. 3 is the fog tail lamp relay circuit figure of prior art, is used to realize the control of fog tail lamp.Fig. 4 is the control logic figure of fog tail lamp relay shown in Figure 3.Pin 30 power connection positive poles, pin 31 power connection negative poles, pin 15 and pin F connect cooresponding enable switch respectively, and pin 87 connects load.Fog lamp control: allow conducting state (high level 9V-16V) when pin 15 pin or pin F are in, on-off signal pin E obtains will changing behind the energizing signal break-make of lamp load at every turn, become bright (ON) by go out (OFF), perhaps go out by bright becoming, change along with signal, continuous varying cyclically is specifically shown in control logic figure.
In the prior art of Fig. 1-shown in Figure 4, build peripheral circuit by three independently complicated relays and switch rigid line and finish steering indicating light, windscreen wiper intermittence/spray and fog tail lamp function, for making the legal rule requirement of functor, need build complicated peripheral hard wire logic to electric source modes and precondition that corresponding function enables, make that the principle of design complexity is obscure, the wire harness cost is higher, and structure is messy, and after-sales service is inconvenience very.
In addition, retrieval through existing technical literature and patent is found: Chinese patent application number is 200710118233.1, publication number is CN101083859, name is called in the patent of " a kind of control setup of flasher ", its steering indicating light has normal direction of rotation indication on daytime, and turning light, steering indicating light are forgotten the three big radical functions such as SELF CL of closing during night.This patent has just proposed to finish but steering indicating light is forgotten and assisted chaufeur to close steering indicating light by judging the steering wheel angle amplitude when closing turning to, how automatically do not relate to, intelligently, need not to save battery electric quantity under the artificial situation about getting involved.
Summary of the invention
At the problems referred to above, the utility model provides a kind of four unification ECU (Electrical Control Unit), comprise: high effectively switch input circuit and the low effective switch input circuit of input of master cock that is used to receive steering indicating light, fog tail lamp, central controlled lock, the windscreen wiper of automobile, the effective input circuit output of described height high level useful signal, described low effective switch input circuit output low level useful signal; Receive the controller of described high level useful signal and low level useful signal; Be respectively applied for the left and right steering indicating light output driving circuit of the on and off of control left steering lamp and right steering lamp; Be used to control the fog tail lamp output driving circuit of the light on and off of fog tail lamp; Be used to control the central controlled lock output driving circuit of the release and the locking of central controlled lock; Be used to control the windscreen wiper output driving circuit of windscreen wiper; The output port of described controller is connected to the input port of described left steering lamp output driving circuit, described right steering lamp output driving circuit, described fog tail lamp output driving circuit, described central controlled lock output driving circuit, described windscreen wiper output driving circuit.
Further, described four unification ECU (Electrical Control Unit) also comprise: the input collector, and it is connected between the effective switch input circuit of described height, low effective switch input circuit and the described controller; And the power line voltage collecting unit, described power line voltage collection is with battery power, and is described controller power supply.
Further, described controller is by PWM ripple signal and described left and right steering indicating light output driving circuit telecommunication.
Further, described controller passes through linear PWM ripple signal and the described left and right steering indicating light output driving circuit telecommunication that reduces of dutycycle in a period of time.
Further, the power supply of described left and right steering indicating light output driving circuit is connected to the flashing power source of automobile.
Further, the output of described central controlled lock output driving circuit is connected to the central controlled lock motor.
Further, the output of described windscreen wiper output driving circuit is connected to Wiper Relay.
Further, the input of the clock signal of described input collector is connected to the clock signal output of described controller.
Further, described controller is XC221OU, described input collector is MAX13362, described left steering lamp output driving circuit is BTS5020, described right steering lamp output driving circuit is BTS5020, and described fog tail lamp output driving circuit is BTS5020, and described central controlled lock output driving circuit is BTM7742G, described windscreen wiper output driving circuit is TLE7240SL, and described power line voltage collecting unit is TLE4699.
Further, the output port of described controller comprises: first, second, third, fourth, the 5th, the 6th GPIO port and the first, second, third, the 3rd A/D port; The input port of described left steering lamp output driving circuit comprises IN port and IS port, and wherein IN port and IS port are connected respectively to a GPIO port and an A/D port; The input port of described right steering lamp output driving circuit comprises IN port and IS port, and wherein IN port and IS port are connected respectively to the 2nd GPIO port and the 2nd A/D port; The input port of described fog tail lamp output driving circuit comprises IN port and IS port, and wherein IN port and IS port are connected respectively to the 3rd GPIO port and the 3rd A/D port; The input port of described central controlled lock output driving circuit comprises IN1 port, IN2 port, INH port and IS port, is connected respectively to the 4th GPIO port, the 5th GPIO port, the 6th GPIO port and the 4th A/D port; Described windscreen wiper output driving circuit is connected by universal serial bus with described controller.
Described four unification ECU (Electrical Control Unit) are integrated in steering indicating light, windscreen wiper intermittence/spray, central controlled lock and four kinds of functions of fog tail lamp in the ECU (Electrical Control Unit), reduced the use of complicated relay, simultaneously because the utilization of controller to realize correlation function more neatly, has improved the renewable property of system and the property transformed.Innovation ground reduces danger alarm lamp dutycycle under the OFF electric source modes simultaneously, has reduced battery power consumption.The utility model has been optimized the realization framework from system level, has promoted function in the time of cost-cutting.
Description of drawings
Fig. 1 is the steering indicating light relay circuit figure of prior art;
Fig. 2 is the windscreen wiper intermittent duty relay circuit diagram of prior art;
Fig. 3 is the fog tail lamp relay circuit figure of prior art;
Fig. 4 is the control logic figure of fog tail lamp relay shown in Figure 3;
Fig. 5 is the block scheme of four unification ECU (Electrical Control Unit) of the present utility model;
Fig. 6 is the circuit diagram of an example of four unification ECU (Electrical Control Unit) of the present utility model;
Fig. 7 is the danger alarm lamp dutycycle output control sequential chart that four unification ECU (Electrical Control Unit) shown in Figure 5 realize.
The specific embodiment
As shown in Figure 5, four unification ECU (Electrical Control Unit) of the present utility model comprise high effectively switch input circuit and low effective switch input circuit.These two input circuits can be avoided the influence of battery supply to incoming signal.High effectively switch input circuit receives the input of some switches of automobile device, comprise flashing power source, headlight switch, flash light switch, spray switch, intermittently gear switch, windscreen wiper stop bit, IGN2 switch (it is the input of RUN shelves power supply, be used to judge the electric source modes of current vehicle, be the position that car key is screwed to), the closed and disconnected of these switches is converted to high effectively on off state behind too high effective switch input circuit.Low effective switch input circuit receives the input of the switch of other automobile device, comprise latch switch, unlock switch, pressure unlocking signal, fog tail lamp switch, the closed and disconnected of these switches is converted to low effective on off state after hanging down effective switch input circuit.
The output of high effectively switch input circuit and low effective switch input circuit is connected to the input collector, and when on off state changed, input collector relevant register value changed.Be connected to controller behind the input collector, controller for example can be by realizations such as MCU, CPU, industrial computers.Controller is the data handing of whole ECU (Electrical Control Unit) and the core cell of switch control.MCU adopts the mechanism and the communication of input collector of regularly inquiry, and under the query statement of controller, the input collector is sent to controller with current register value (being on off state).Controller is controlled corresponding output driving circuit according to current on off state.
Particularly, the control of steering indicating light is finished by left and right steering indicating light output driving circuit.When controller detected the flashing power source switch closure, output PWM ripple was controlled bulb to left and right steering indicating light output driving circuit and is finished flashing function.
It is to realize by load detection that flashing function is still turned to the judgement of function.Load current feedback value and corresponding threshold value that controller reads left and right steering indicating light output driving circuit compare, and carry out the load diagnosis.When left and right steering indicating light output driving circuit had the load current feedback value, controller judged it is in the flash light function, this load current feedback value usually between 0 and the minimum value of short circuit current between.Even the bulb open circuit is arranged, controller does not change the PWM wave frequency of output yet.Wherein when bulb is opened a way, this moment, the load current feedback value was less than a threshold value, this threshold value is monolateral (left side or the right) load lower limit of current feedback value just often, actually, for the purpose of more accurate, can be by the value of considering to calculate after cell pressure influence of fluctuations, temperature effect and the loading error influence.When having only a left side or right steering lamp output driving circuit that the current feedback value is arranged, it is in the steering indicating light function that controller is judged, if a bulb open circuit is arranged, then the PWM wave frequency of controller output doubles, and also is that flicker frequency doubles.When controller detects the disconnection of IGN2 source switch, be indicated as the danger alarm lamp function, think that then electric source modes enters the OFF state, controller (for example 10 minutes) in a period of time reduces PWM ripple dutycycle (for example being 50%), continue for some time (for example 10-20 minute) again and reduce PWM ripple dutycycle (for example adjusting to 30%) and maintenance linearly again, thereby the saving battery power, specifically as shown in Figure 7.
Simultaneously, in order more to guarantee the correctness of function, can also further judge by switch closed condition to turn to function or flashing function.During the steering indicating light function, the turn signal swich closure of flashing power source switch and respective side, this realizes that by the switch physical construction prior art has a variety of implementations, is not described in detail in this; During the flash light function, flashing power source switch and left and right sides turn signal swich are all closed, and this realizes that by the switch physical construction prior art has a variety of implementations, is not described in detail in this.
More preferably, the power supply of left and right sides steering indicating light output driving circuit is introduced by flashing power source, when avoiding flash light and other loads to open simultaneously to the influence of other loads.
Control for fog tail lamp is finished by the fog tail lamp output driving circuit.When controller detects headlight switch and fog tail lamp switch closure, light fog tail lamp by the fog tail lamp output driving circuit.The while controller reads the load current feedback value of fog tail lamp output driving circuit and carries out the load diagnosis.When diagnosis had short trouble, driving circuit output was cut off, and is not burnt by overcurrent with protective circuit.Simultaneously, when short circuit or open fault, MCU record trouble sign indicating number is so that the investigation problem.
More preferably, the power supply of fog tail lamp output driving circuit is directly supplied with by battery supply.Because fog tail lamp is high-power lamp, preferably by the battery direct supply, supply with and can't help modular power source, can prevent when the high-power lamp unlatching like this or when closing, its momentary voltage pulse causes harmful effect to module MCU.
Control for central controlled lock is finished by the central controlled lock output driving circuit.When controller detects latch switch when closed, driving door-lock motor by the central controlled lock output driving circuit is just changeing and finishes blocking function; When controller detects when unblanking/forcing the unlocking signal switch closure, drive the door-lock motor counter-rotating by the central controlled lock output driving circuit and finish unlocking function; Simultaneously if unblanking of forcing that the unlocking signal closure causes, controller drives the flash light flicker simultaneously and warns.In addition, controller is finished diagnosis function by the load current feedback value that reads the central controlled lock output driving circuit.When diagnosis had short trouble, driving circuit output was cut off, and is not burnt by overcurrent with protective circuit.Simultaneously, when short circuit or open fault, MCU record trouble sign indicating number is so that the investigation problem.
More preferably, the power supply of central controlled lock output driving circuit is directly supplied with by battery supply.The central controlled lock output driving circuit is high-performance load, by the battery direct supply, supply with and can't help modular power source, in case when the high power load unlatching or the momentary voltage pulse when closing module MCU is caused harmful effect.
For the control of windscreen wiper, finish by the windscreen wiper output driving circuit.After controller detects intermittently gear switch or wash switch closure, make the Wiper Relay closure by the windscreen wiper output driving circuit, and then drive rain shaving electrical machine.Controller is regularly inquired about intermittence/wash switch position and windscreen wiper stop bit signal.At intermittence during function, after controller detects windscreen wiper stop bit switch closure, by windscreen wiper output driving circuit output enable signal (for example high level), behind the certain interval of time (for example 6 seconds), export disable signal (for example low level) again, finishing intermittently and so forth, the wiper function detects intermittently gear switch disconnection up to controller.During washing function, get back to the stop bit required time to windscreen wiper when controller disconnects according to the closed duration of wash switch and wash switch, thereby judge residue wiper number of times, scrape totally cleansing fluid on glass as far as possible.The windscreen wiper output driving circuit can be finished to the diagnosis of load and with relevant register set simultaneously, and controller is by reading corresponding loading condition.When diagnosis had short trouble, driving circuit output was cut off, and is not burnt by overcurrent with protective circuit.Simultaneously, when short circuit or open fault, MCU record trouble sign indicating number is so that the investigation problem.
Described four unification ECU (Electrical Control Unit) also comprise the power line voltage collecting unit, and it gathers battery supply, is converted to suitable voltage, and independent the power supply to MCU avoids the MCU power line voltage to be subjected to influence of fluctuations.Flashing power source is a power supply of giving left and right sides steering indicating light power supply separately, and this road power supply is when avoiding flash light to open with the purpose that other power supplys separate, and the voltage fluctuation that the flash light flicker causes produces flickering harmful effect to the bulb that other are in illuminating state.
Fig. 6 shows the circuit diagram of an example of four unification ECU (Electrical Control Unit) of the present utility model.MCU realizes that by chip XC221OU MCU adopts inner crystal oscillator to carry out timing.The input collector is realized by chip MAX13362, can reduce the influence that MCU is subjected to the battery supply fluctuation.Left and right steering indicating light output driving circuit and fog tail lamp output driving circuit are realized by chip BTS5020, are driven left and right sides steering indicating light, fog tail lamp respectively.The central controlled lock output driving circuit is realized by chip BTM7742G, drives the door-lock motor forward or reverse.The windscreen wiper output driving circuit is realized by chip TLE7240SL, controls outside the windscreen wiper intermittently adhesive and the disconnection of shelves relay.The power line voltage collecting unit is realized by chip TLE4699.
As shown in Figure 6, the input of high effectively switch and low effective switch input are connected to input collector MAX13362 by circuit as shown above, when on off state changes, input chip relevant register value changes, MCU adopts the mechanism of regularly inquiry to enable to import the acquisition chip communication by chip selection signal pin CS pin, the input collector is sent to MCU with current on off state by the SDO mouth, the CLK pin of collector is connected to the clock output pin of MCU, that is to say that the timing of collector is introduced MCU internal clocking frequency by the CLK pin.MCU is realized by XC2210U.
The output of MCU comprises five groups of GPIO ports and A/D port.Left steering lamp output driving circuit BTS5020 has IN port and IS port, and the GPIO port of MCU and an A/D port are connected respectively to IN port and the IS port of BTS5020.Right steering lamp output driving circuit BTS5020 has IN port and IS port, and the 2nd GPIO port of MCU and the 2nd A/D port are connected respectively to IN port and the IS port of right steering lamp output driving circuit BTS5020.Fog tail lamp output driving circuit BTS5020 has IN port and IS port, and the 3rd GPIO port of MCU and the 3rd A/D port are connected respectively to IN port and the IS port of fog tail lamp output driving circuit BTS5020.Central controlled lock output driving circuit BTM7742G has IN1, IN2, INH and IS port, and it is connected respectively to the 4th GPIO port, the 5th GPIO port, the 6th GPIO port and the 4th A/D port.
The power supply VS of left and right steering indicating light output driving circuit BTS5020 is introduced by flashing power source separately, when avoiding flash light and other loads to open simultaneously to the influence of other loads.When MCU detects the flashing power source switch closure, control bulb by the delivery port output PWM ripple that has the PWM function to the IN mouth of BTS5020 and finish flashing function.While MCU reads the load current feedback value by the IS mouth and corresponding threshold value compares, and carries out the load diagnosis function.During the steering indicating light function, the turn signal swich closure of flashing power source switch and respective side; During the flash light function, flashing power source switch and left and right sides turn signal swich are all closed.When the IS of two BTS5020 mouth all has the current feedback value, it is in the flash light function that MCU judges, even bulb open circuit (determining by IS feedback and normal threshold comparison) is arranged, MCU does not change the PWM wave frequency of output yet; When the IS mouth that has only a BTS5020 has the current feedback value, it is in the steering indicating light function that MCU judges, if a bulb open circuit (determining by IS feedback and normal threshold comparison) is arranged, then the PWM wave frequency of MCU output doubles, and also is that flicker frequency doubles.Under the danger alarm lamp function, when MCU detects the disconnection of IGN2 source switch, think that then electric source modes enters the OFF state, MCU kept output PWM ripple dutycycle in 10 minutes be 50%, the PWM ripple dutycycle of will exporting linear between 10-20 minute is adjusted to 30% also maintenance, thereby saves battery power.
The chip power VS of fog tail lamp output driving circuit BTS5020 is directly supplied with by battery supply, and when MCU detected headlight switch and fog tail lamp switch closure, the output high level was to the pin IN of BTS5020, and BTS5020 drives fog tail lamp by pin OUT and lights.MCU finishes the load diagnosis function with crossing pin IS detection load current feedback value simultaneously.
The power supply VS of central controlled lock output driving circuit BTM7742G is directly supplied with by battery supply, when MCU detects the latch switch closure, the output high level makes electric current flow to pin OUT2 by pin OUT1 to the pin IN1 of BTM7742G, finishes blocking function thereby door-lock motor is just changeing; When MCU detects when unblanking/forcing the unlocking signal switch closure, the output high level makes electric current flow to pin OUT1 by pin OUT2 to the pin IN2 of BTM7742G, finishes unlocking function thereby door-lock motor reverses; Simultaneously if unblanking of forcing that the unlocking signal closure causes, MCU drives the flash light flicker simultaneously and warns.MCU finishes diagnosis function by the pin IS load current feedback that reads BTM7742G, and when dormancy, the MCU output low level makes BTM7742G be in park mode to pin INH, reduces quiescent dissipation.
The windscreen wiper intermittent duty relay is driven by windscreen wiper output driving circuit TLE7240SL and finishes, and connects with universal serial bus between MCU and the TLE7240SL.After MCU detected intermittently gear switch or wash switch closure, output command made TLE7240SL the 8 tunnel output low level for the pin SI of TLE7240SL, thereby makes relay closes drive rain shaving electrical machine.MCU regularly inquires about intermittence/wash switch position and windscreen wiper stop bit signal.At intermittence during function, after MCU detects windscreen wiper stop bit switch closure, output command makes TLE7240SL the 8 tunnel output high level for the pin SI of TLE7240SL, pause after 6 seconds, output command makes TLE7240SL the 8 tunnel output low level for TLE7240SL SI pin again, and finishing intermittently and so forth, the wiper function detects intermittently gear switch disconnection up to MCU.During washing function, get back to the stop bit required time to windscreen wiper when MCU disconnects according to the closed duration of wash switch and wash switch, thereby judge residue wiper number of times, scrape totally cleansing fluid on glass as far as possible.TLE7240SL can finish to the diagnosis of load and with relevant register set simultaneously, and MCU reads corresponding loading condition by universal serial bus.
In the utility model, steering indicating light, windscreen wiper intermittence/spray, central controlled lock and four kinds of functions of fog tail lamp are integrated in the ECU (Electrical Control Unit), reduced the use of three complicated relays, simultaneously since the utilization of controller to realize correlation function more neatly, the shortcoming of renewable property of the system that has avoided pure hardware to build and the property transformed difference.And a special advantage is: in 20 minutes after electric source modes switches to OFF, danger alarm lamp flicker dutycycle is 50%, surpasses after 20 minutes, and the flicker dutycycle is adjusted into 30%, reach the purpose of saving battery power, simultaneously the function of warning that can be correct.Four unification ECU (Electrical Control Unit) function logics of the present utility model are clear, only need change the function of controller during function renewal, and are comparatively simple; What is more important is compared with existing scheme, and new departure reduces the switch hardware signal by the optimization of steering indicating light, windscreen wiper intermittence/spray, central controlled lock and fog tail lamp framework, has saved the wire harness cost, realizes the modularization of function, has reduced the difficulty of after-sales service.
Claims (10)
1. a unification ECU (Electrical Control Unit) is characterized in that, comprising:
Be used to receive high effectively switch input circuit and the low effective switch input circuit of input of master cock of steering indicating light, fog tail lamp, central controlled lock, the windscreen wiper of automobile, the effective input circuit output of described height high level useful signal, described low effective switch input circuit output low level useful signal;
Receive the controller of described high level useful signal and low level useful signal;
Be respectively applied for the left and right steering indicating light output driving circuit of the on and off of control left steering lamp and right steering lamp;
Be used to control the fog tail lamp output driving circuit of the light on and off of fog tail lamp;
Be used to control the central controlled lock output driving circuit of the release and the locking of central controlled lock;
Be used to control the windscreen wiper output driving circuit of windscreen wiper;
The output port of described controller is connected to the input port of described left steering lamp output driving circuit, described right steering lamp output driving circuit, described fog tail lamp output driving circuit, described central controlled lock output driving circuit, described windscreen wiper output driving circuit.
2. four unification ECU (Electrical Control Unit) according to claim 1 is characterized in that, also comprise:
The input collector, it is connected between the effective switch input circuit of described height, low effective switch input circuit and the described controller;
And the power line voltage collecting unit, described power line voltage collection is with battery power, and is described controller power supply.
3. four unification ECU (Electrical Control Unit) according to claim 1 is characterized in that described controller is by PWM ripple signal and described left and right steering indicating light output driving circuit telecommunication.
4. four unification ECU (Electrical Control Unit) according to claim 3 is characterized in that PWM ripple signal and described left and right steering indicating light output driving circuit telecommunication that described controller reduces by the dutycycle linearity in a period of time.
5. four unification ECU (Electrical Control Unit) according to claim 1 is characterized in that the power supply of described left and right steering indicating light output driving circuit is connected to the flashing power source of automobile.
6. four unification ECU (Electrical Control Unit) according to claim 1 is characterized in that the output of described central controlled lock output driving circuit is connected to the central controlled lock motor.
7. four unification ECU (Electrical Control Unit) according to claim 1 is characterized in that the output of described windscreen wiper output driving circuit is connected to Wiper Relay.
8. four unification ECU (Electrical Control Unit) according to claim 1 is characterized in that, the clock signal input of described input collector is connected to the clock signal output of described controller.
9. four unification ECU (Electrical Control Unit) according to claim 1, it is characterized in that, described controller is XC221OU, described input collector is MAX13362, and described left steering lamp output driving circuit is BTS5020, and described right steering lamp output driving circuit is BTS5020, described fog tail lamp output driving circuit is BTS5020, described central controlled lock output driving circuit is BTM7742G, and described windscreen wiper output driving circuit is TLE7240SL, and described power line voltage collecting unit is TLE4699.
10. four unification ECU (Electrical Control Unit) according to claim 9 is characterized in that,
The output port of described controller comprises: first, second, third, fourth, the 5th, the 6th GPIO port and the first, second, third, the 3rd A/D port;
The input port of described left steering lamp output driving circuit comprises IN port and IS port, and wherein IN port and IS port are connected respectively to a GPIO port and an A/D port;
The input port of described right steering lamp output driving circuit comprises IN port and IS port, and wherein IN port and IS port are connected respectively to the 2nd GPIO port and the 2nd A/D port;
The input port of described fog tail lamp output driving circuit comprises IN port and IS port, and wherein IN port and IS port are connected respectively to the 3rd GPIO port and the 3rd A/D port;
The input port of described central controlled lock output driving circuit comprises IN1 port, IN2 port, INH port and IS port, is connected respectively to the 4th GPIO port, the 5th GPIO port, the 6th GPIO port and the 4th A/D port;
Described windscreen wiper output driving circuit is connected by universal serial bus with described controller.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106593148A (en) * | 2015-10-16 | 2017-04-26 | 联合汽车电子有限公司 | Door lock control unit for passenger car |
| CN107804253A (en) * | 2017-12-07 | 2018-03-16 | 柳州市美源科技股份有限公司 | A kind of Multifunctional relay control module |
| CN112672907A (en) * | 2018-09-10 | 2021-04-16 | 克诺尔商用车制动系统有限公司 | Device for decoupling and preventing a compensation current in a redundant system for autonomous driving |
| CN113320390A (en) * | 2020-02-28 | 2021-08-31 | 株式会社电装电子 | Power supply circuit |
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2013
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593148A (en) * | 2015-10-16 | 2017-04-26 | 联合汽车电子有限公司 | Door lock control unit for passenger car |
| CN106593148B (en) * | 2015-10-16 | 2019-04-05 | 联合汽车电子有限公司 | Passenger car doorlock control unit |
| CN107804253A (en) * | 2017-12-07 | 2018-03-16 | 柳州市美源科技股份有限公司 | A kind of Multifunctional relay control module |
| CN112672907A (en) * | 2018-09-10 | 2021-04-16 | 克诺尔商用车制动系统有限公司 | Device for decoupling and preventing a compensation current in a redundant system for autonomous driving |
| CN112672907B (en) * | 2018-09-10 | 2023-12-22 | 克诺尔商用车制动系统有限公司 | Device for decoupling and preventing compensation currents in a redundant system for autopilot |
| CN113320390A (en) * | 2020-02-28 | 2021-08-31 | 株式会社电装电子 | Power supply circuit |
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