CN103967679B - Starter control system controls method and the starter control system thereof of starter motor - Google Patents
Starter control system controls method and the starter control system thereof of starter motor Download PDFInfo
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- CN103967679B CN103967679B CN201310030002.0A CN201310030002A CN103967679B CN 103967679 B CN103967679 B CN 103967679B CN 201310030002 A CN201310030002 A CN 201310030002A CN 103967679 B CN103967679 B CN 103967679B
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Abstract
The invention provides a kind of starter control system, comprise an interconnective key and start control unit, engine management unit and starting relay; A described key starts control unit and is connected with the first input end of starting relay, powers on and power-off for controlling starting relay first input end; Described engine management unit is connected with the second input end of starting relay, powers on and power-off for controlling starting relay second input end; Make starting relay close after the first input end of described starting relay and the second input end power on, described starting relay is closed makes starter motor start.Described starter control system is controlled starting relay by two unit, reduces the probability controlling error, improves vehicle safety performance; The invention allows for a kind of method that starter control system controls starter motor.
Description
Technical field
The present invention relates to the control technique of starter motor, particularly relate to method and starter control system thereof that starter control system controls starter motor.
Background technique
Motor system is the heart of automobile, for the walking of automobile provides power, is related to the power character of automobile, Economy, the feature of environmental protection; Motor is started by starter motor, and Control is passed through in the startup of starter motor; The startup of orthodox car motor is that driver is directly controlled by key, and driver assume responsibility for the responsibility of guaranteeing to start safety, and such as driver can confirm that whether speed changer is at neutral gear, and whether clutch throws off, and whether has pedestrian etc. at vehicle front.
Along with the technology development of automotive field, current automobile is mostly configured with a key and starts control unit, the process that one key starts control unit control starter motor is: after operator perform a key startup, one key starts control unit and automatically detects and start whether safety, if detect startup safety, then the driver element of a key startup control unit exports a drive singal and closes starting relay, starting relay is closed makes power supply be that starter motor is powered, and the starter motor after power supply drives engine start.
One key starts the Booting sequence that control unit simplifies starter motor, make the startup of starter motor become intelligent simultaneously, but utilize a key to start control unit and control starter motor separately, following problem may be there is like this: (wherein the English full name of RAM is RandomAccessMemory if a key starts control unit internal RAM, Chinese full name is random access memory) fault, or starter motor driver output level catastrophic failure etc., starter motor is all likely caused to power on suddenly, because now powering on of starter motor powers on by mistake, therefore need to disconnect starter motor; But a key starts control unit can not disconnect starting relay automatically due to fault, and then cause safety problem.
Summary of the invention
The internal RAM fault in control unit is started for solving a key in prior art, or starter motor driver output level catastrophic failure etc., he causes starting chance error to power on, therefore need to disconnect starter motor; But a key starts control unit can not disconnect starting relay automatically due to fault, and then cause safety problem, the invention provides a kind of starter control system and can solve the problem that can not disconnect starter motor after a key starts control unit fault false tripping starter motor.
On the one hand, the starter control system in the embodiment of the present invention comprises an interconnective key startup control unit, engine management unit and starting relay;
A described key starts control unit and is connected with the first input end of starting relay, power on and power-off for controlling starting relay first input end, and after receiving the signal of ato unit, send the first drive singal the first input end of starting relay is powered on;
Described engine management unit is connected with the second input end of starting relay, power on and power-off for controlling starting relay second input end, and after receiving the signal of ato unit, send the second drive singal the second input end of starting relay is powered on;
Make starting relay close after the first input end of described starting relay and the second input end power on, described starting relay is connected with starter motor, and described starting relay is closed makes described starter motor start.
Beneficial effect: start by a key scheme that control unit controls separately starting relay closed and disconnected relative in prior art; Starter control system of the present invention starts control unit and engine management unit co-controlling starting relay closed and disconnected by a key, even if a key starts one of them fault in control unit and engine management unit, cause starting relay one end to power on by mistake, also the other end power-off of starting relay can be controlled to disconnect starting relay, avoid, because motor opened by closed starting relay by mistake, causing car accident.
Further, in starter control system of the present invention, a described key starts control unit and comprises:
First neutral signal receiving unit, for receiving the neutral signal of neutral gear sensor collection and sending to the first control unit;
First control unit, for receiving the neutral signal of braking pedal signal and the forwarding of the first neutral signal receiving unit, and when receiving neutral signal and braking pedal steps on signal, sends the first control command;
First driver element, for sending the first drive singal according to the first control command;
Described engine management unit comprises:
Second neutral signal receiving unit, for receiving the neutral signal of neutral gear sensor collection and sending to the second control unit;
Second control unit, for receiving the neutral signal of braking pedal signal and the forwarding of the second neutral signal receiving unit, and when receiving neutral signal and braking pedal steps on signal, sends the second control command;
Second driver element, for sending the second drive singal according to the second control command.
Starter control system described in this programme adds the first neutral signal receiving unit and the second neutral signal receiving unit, the neutral signal that neutral gear sensor device gathers can be received, and the first control unit and the second control unit are only when receiving the signal that vehicle neutral signal and braking pedal are stepped on, just control starting relay to close to start starter motor, even if described starting relay closed is closed (by mistake closed starting relay cause vehicle operating can be accidents caused) by mistake, also because vehicle is in neutral position state and braking pedal is stepped on, vehicle can not be advanced, avoid further occurring vehicle safety accident.
Further, in starter control system of the present invention, a described key starts control unit, engine management unit is connected with brake pedal switch respectively with by rigid line, and a described key is started control unit and is connected by vehicle body control unit with engine management unit;
Described braking pedal steps on signal from described rigid line or from described vehicle body control unit.
Further, in starter control system of the present invention, described first neutral signal receiving unit comprises the first resistance element and the second resistance element, described first resistance element one end ground connection, and the other end is used for being connected with neutral gear sensor;
Described second resistance element one termination first predeterminated voltage, the other end is used for being connected with neutral gear sensor.
Further, in starter control system of the present invention, described first driver element comprises the first metal-oxide-semiconductor, and the grid of described first metal-oxide-semiconductor is connected with the first control unit, drain electrode connection second predeterminated voltage, and source electrode connects the first input end of starting relay;
Described second driver element comprises the second metal-oxide-semiconductor, and the grid of described second metal-oxide-semiconductor is connected with the second control unit, and drain electrode connects the second input end of starting relay, source ground.
Further, in starter control system of the present invention, a described key starts control unit and also comprises:
Fisrt fault detection unit, for detecting the first driver element whether fault, and when detecting the first driver element fault-free, the first driver element fault-free information that sends is to the first control unit and the second control unit.
Starter control system described in this programme can detect the first driver element whether fault, and the fault message detected is sent to the second control unit, achieves information sharing, better to control starting relay.
Further, in starter control system of the present invention, described engine management unit also comprises:
Second fault detection unit, for detecting the second driver element whether fault, and when detecting the second driver element fault-free, the second driver element fault-free information that sends is to the first control unit and the second control unit;
Described first control unit also for receiving the second driver element fault-free information, braking pedal steps on signal, the first neutral signal receiving unit forwards neutral signal and the first driver element fault-free information time, send the first control command;
Described second control unit also for receiving the first driver element fault-free information, braking pedal steps on signal, the second neutral signal receiving unit forwards neutral signal and the second driver element fault-free information time, send the second control command.
Starter control system described in this programme can detect the second driver element whether fault, and the fault message detected is sent to the first control unit, achieves information sharing, better to control starting relay.
Further, starter control system of the present invention also comprises the engine anti-theft authentication unit be located in engine management unit, and is located at the timing unit in a key startup control unit and/or engine management unit;
Described engine anti-theft authentication unit is used for when starting relay closes or after starting, and carries out engine anti-theft certification;
Described timing unit is used for carrying out timing to the time of engine anti-theft certification and the operating time of starter motor;
If the time of the antitheft certification of motor arrives the first Preset Time, engine anti-theft certification does not complete, and controls the first driver element and/or the second driver element disconnection starting relay;
If the operating time of starter motor arrives the second Preset Time, control the first driver element and/or the second driver element and disconnect starting relay to disconnect starter motor.
Starter control system described in this programme can judge that whether engine anti-theft certification is overtime, and under timeout case, disconnects starting relay, avoid because engine problem causes vehicle to break down.
Further, in starter control system of the present invention, be provided with in the 3rd fault detection unit and/or engine management unit in a described key startup control unit and be provided with the 4th fault detection unit;
Described 3rd fault detection unit and/or the 4th fault detection unit are used for, after starting relay disconnects, carrying out faut detection, and when detecting that starter motor exists fault, sending and preserving starter motor fault message starter motor.
Starter control system described in this programme carries out faut detection to starter motor after starting relay disconnects, and avoids because starter motor fault causes vehicle safety accident.
Internal RAM (storage) fault in control unit is started in order to the key solving prior art, or starter motor driver output level catastrophic failure etc., he all likely causes starting chance error to power on, therefore need to disconnect starter motor; But a key starts control unit can not disconnect starting relay automatically due to fault, and then cause safety problem, present invention also offers a kind of method that starter control system controls starter motor, described starter control system is starter control system described above;
The controlling method of described starter motor comprises the following steps:
The signal of A, acquisition ato unit;
B, a key start control unit and send the first drive singal according to the signal of ato unit starting relay first input end is powered on, and engine management unit sends the second drive singal according to the signal of ato unit starting relay second input end is powered on closed starting relay.
Beneficial effect: start by a key scheme that control unit controls separately starting relay closed and disconnected relative in prior art; Starter control system of the present invention controls starter motor method by sending the first drive singal and the second drive singal co-controlling starting relay closes, even if one of them in the second drive singal and the second drive singal is drive singal by mistake, cause starting relay one end to power on by mistake, also can cut off another drive singal makes the other end power-off of starting relay to disconnect starting relay, avoids opening motor because of false tripping relay and causes car accident.
Further, starter control system of the present invention controls in the method for starter motor, after step A, before step B, further comprising the steps of:
Detect vehicle and whether be in neutral position state, detect braking pedal simultaneously and whether step on;
If detect and show that vehicle is in neutral position state and braking pedal is stepped on, then perform step B.
This programme is before execution step B, first confirm that vehicle is in neutral position state and braking pedal is stepped on, even if the first drive singal and the second drive singal are all that error signal causes closed starting relay like this, also because vehicle is in neutral position state and braking pedal is stepped on, vehicle can not be caused to advance, avoid further occurring vehicle safety accident.
Further, the method for starter control system control starter motor of the present invention is further comprising the steps of:
Detect vehicle and whether be in neutral position state, detect braking pedal whether to step on, detect the first driver element whether fault testing result is sent to engine management unit, and detect the second driver element whether fault testing result sent to a key to start control unit;
If detect and show that vehicle is in neutral position state, braking pedal is stepped on, and engine management unit receives the first driver element fault-free information and a key startup control unit receives the second driver element fault-free information, then perform step B.
This programme, before execution step B, first confirms that vehicle is in neutral position state, braking pedal is stepped on and the fault of further investigation the first driver element and the second driver element, reduces the vehicle probability that accidents happened.
Further, starter control system of the present invention controls, in the method for starter motor, after starting relay is closed, periodically detects the first driver element and whether there is fault and testing result is sent to engine management unit;
If engine management unit does not periodically receive the first driver element fault-free information, then cut off the second drive singal to disconnect starting relay;
After starting relay is closed, periodically detects the second driver element and whether there is fault and testing result sent to a key to start control unit;
If a key starts control unit periodically do not receive the second driver element fault-free information, then cut off the first drive singal to disconnect starting relay.
This programme is after starting relay is closed, and investigation the first driver element and the second driver element whether fault further, and when there being fault, disconnect starting relay, avoids the fault because of the first driver element and the second driver element to bring the safety problem of vehicle.
Further, starter control system of the present invention controls in the method for starter motor, when starting relay closes or closed after, carry out the antitheft certification of motor and timing, and timing carried out to the operating time of starter motor;
If the time of the antitheft certification of motor arrives the first Preset Time, engine anti-theft certification does not complete, then cut off the first drive singal and/or the second drive singal to disconnect starting relay;
If the operating time of starter motor arrives the second Preset Time, the first driver element and/or the second driver element disconnect starting relay to disconnect starter motor.
This programme, when starting relay closes or after closing, carries out antitheft certification to motor, and under certification timeout case, disconnects starting relay, avoid because engine problem causes security incident.
Further, starter control system of the present invention controls, in the method for starter motor, if engine anti-theft authentication success, then send the index signal of engine anti-theft authentication success and detect engine speed;
If engine speed is greater than predefined value, then cut off the first drive singal and/or the second drive singal to disconnect starting relay.
This programme is after engine anti-theft authentication success, detect engine speed and whether meet predefined value, if meet, illustrate that motor normally starts, at this moment disconnecting starting relay in time avoids starter motor to work long hours causing Starter or overrunning clutch to damage, and even vehicle fire accident occurs.
Further, starter control system of the present invention controls, in the method for starter motor, if engine anti-theft authentification failure, then to send engine lock stop signal;
According to engine locking signal cut first drive singal and/or the second drive singal to disconnect starting relay.
This programme, after authentication engine failure, disconnects starting relay, avoids engine problem to cause security incident.
Further, the method for starter control system control starter motor of the present invention is further comprising the steps of:
After disconnection starting relay, faut detection is carried out to starter motor;
If starter motor exists fault, then send starter motor fault message and preserve.
This programme can monitor starter motor constantly, when starter motor fault, can obtain fault message, to handle it in time.
Accompanying drawing explanation
Fig. 1 is starter control system embodiment 1 block diagram provided by the invention.
Fig. 2 is starter control system embodiment 2 block diagram provided by the invention.
Fig. 3 is starter control system embodiment 3 block diagram provided by the invention.
Fig. 4 is starter control system embodiment 4 block diagram provided by the invention.
Fig. 5 is embodiment of the method 5 flow chart that starter control system provided by the invention controls starter motor.
Fig. 6 is embodiment of the method 6 flow chart that starter control system provided by the invention controls starter motor.
Fig. 7 is embodiment of the method 7 flow chart that starter control system provided by the invention controls starter motor.
Fig. 8 is embodiment of the method 8 flow chart that starter control system provided by the invention controls starter motor.
Fig. 9 is embodiment of the method 9 flow chart that starter control system provided by the invention controls starter motor.
Figure 10 is embodiment of the method 10 flow chart that starter control system provided by the invention controls starter motor.
Wherein, 1, one key starts control unit; 2, engine management unit; 3, starting relay; 4, vehicle body control unit; 5, starter motor; 6, neutral gear sensor; 101, the first neutral signal receiving unit; 102, the first driver element; 103, Fisrt fault detection unit; 104, the 3rd fault detection unit; 201, the second neutral signal receiving unit; 202, the second driver element; 203, the second fault detection unit; 204, the 4th fault detection unit.
Embodiment
In order to make technical problem solved by the invention, technological scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " connection ", should to be interpreted broadly, can be direct connection, also indirectly can be connected by intermediary, can be the connection of two element internals.Term " the first driver element " and " the second driver element " can send drive singal by the closed parts of starting relay after receiving customizing messages; Term " powers on " and has referred to that electric current flows through, and " power-off " then looks like contrary with powering on, and concrete condition can understand above-mentioned term concrete meaning in the present invention.
Starter control system of the present invention comprises an interconnective key and starts control unit, engine management unit and starting relay;
A described key starts control unit and is connected with the first input end of starting relay, power on and power-off for controlling starting relay first input end, and after receiving the signal of ato unit, send the first drive singal the first input end of starting relay is powered on;
Described engine management unit is connected with the second input end of starting relay, power on and power-off for controlling starting relay second input end, and after receiving the signal of ato unit, send the second drive singal the second input end of starting relay is powered on;
Make starting relay close after the first input end of described starting relay and the second input end power on, described starting relay is connected with starter motor, and described starting relay is closed makes described starter motor start.
Starter control system of the present invention control starting relay in the method for starter motor and starter control system thereof closed be controlled together by two different drive singal, lack one of them drive singal, starting relay just can not close, if send the driver element fault of a drive singal, starting relay one end is caused to power on, so can be made the other end power-off of starting relay by the driver element sending another drive singal, avoid false tripping starter motor.
The signal that vehicle internal networks is transmitted can be shared with a key and start control unit and engine management unit, such as braking pedal state signal etc. by the vehicle body control unit described in the present invention; Described vehicle body control unit can also transmit as gateway the interactive information that a key starts control unit and engine management unit both sides, the fault message etc. of such as driver element in addition; The first neutral signal receiving unit below in embodiment and the second neutral signal receiving unit are only one of them specific example, prior art can be utilized to replace according to actual conditions; In embodiment, the first driver element and the second driver element are only one of them specific example below, prior art can be utilized to replace according to actual conditions.
By the following examples the present invention is further detailed.
Embodiment 1
As shown in Figure 1, starter control system described in the present embodiment is used on vehicle, a wherein said key is started control unit 1 and is connected by vehicle body control unit with engine management unit 2, being specially a key, to start control unit 1 by the English full name of BCAN(wherein BCAN be BodyControllerAreaNetwork, Chinese full name is car body controller Local Area Network) be connected with vehicle body control unit 4, engine management unit 2 is PowerControllerAreaNetwork by the English full name of PCAN(wherein PCAN, Chinese full name is power controller Local Area Network) be connected with vehicle body control unit 4, wherein said vehicle body control unit 4 can complete the control to the electrical appliance module on vehicle according to the operational order of driver excessively, such as radio receiver, the English full name of GPS(wherein GPS is GlobalPositioningSystem, Chinese full name is global positioning system) navigation etc., be integrated with communication module in vehicle body control unit simultaneously, one key is started between control unit and engine management unit and can complete information sharing.
A key described in this enforcement starts control unit 1 and can obtain ato unit signal and be transferred to engine management unit 2 by vehicle body control unit, as another kind of mode of execution, the ato unit signal that one key startup control unit 1 obtains also can by hard-wire transfer to engine management unit, and a described key is started control unit and is connected with starting relay first input end (illustrating the upper end of starting relay) by signaling line; When needs ato unit, driver sends ato unit signal by triggering engine start button (or by other vehicle launch modes) Xiang Yijian startup control unit 1, one key starts control unit and exports the first drive singal to starting relay 3 upper end according to this signal, and wherein the first drive singal is current signal.
Engine management unit 2 described in the present embodiment is connected with second input end (illustrating the lower end of starting relay) of starting relay by signaling line, when after the signal receiving the ato unit that vehicle body control unit 4 forwards, engine management unit 2 exports the second drive singal to the lower end of starting relay according to this signal, and wherein the second drive singal is also current signal; When the upper and lower end of starting relay has current signal, starting relay utilizes electromagnetic effect that the switch of starting relay will be made to close, after the switch of starting relay is closed, illustrated second predeterminated voltage V2 is with mechanical starter 5 to start, wherein the size of the second predeterminated voltage V2 provides according to the power of starter motor, guarantee starter motor starts, and starter motor drives engine running after starting, and completes the startup of motor; When motivation closed by needs, as long as a key startup control unit and engine management unit cut off one in the first drive singal and the second drive singal, even if a key starts one of them fault in control unit and engine management unit, also can control starter motor by another and disconnect.
Embodiment 2
As shown in Figure 2, a key in this enforcement starts control unit 1 and specifically comprises the first neutral signal receiving unit 101, first driver element 102 and the first control unit (not shown), described first neutral signal receiving unit is connected with vehicle neutral gear sensor 6, for receiving the neutral signal of neutral gear sensor collection and being transmitted to the first control unit; The first neutral signal receiving unit described in the present embodiment comprises the first resistance R1 and the second resistance R2, described first resistance one end ground connection, and the other end is connected with neutral gear sensor; Described second resistance one termination first predeterminated voltage V1, the first predeterminated voltage sets according to actual needs, and the other end is connected with neutral gear sensor 4; When the first resistance R1 termination receives a high level signal, when the second resistance R termination receives a low level signal, represent that transmission for vehicles is in neutral position state; Described first control unit is connected with the first neutral signal receiving unit 101, first driver element 102 respectively, for receiving the neutral signal of braking pedal signal and the forwarding of the first neutral signal receiving unit, and when receiving neutral signal and braking pedal steps on signal, send the first control command.Wherein the first driver element is used for sending the first drive singal according to the first control command and controls starting relay first input end (diagram upper end) and power on; Described first driver element comprises the first metal-oxide-semiconductor, and (wherein the English full name of metal-oxide-semiconductor is Metal-Oxide-SemiconductorTransistor, Chinese is metal oxide semiconductor field effect tube) M1, the grid of described metal-oxide-semiconductor is connected with the first control unit, drain electrode connection second predeterminated voltage V2, source electrode connects the first input end of starting relay; Wherein the first control command is for controlling the opening and closing of metal-oxide-semiconductor M1, and the second predeterminated voltage V2 sets according to actual needs.When needing output the first drive singal, the first control unit sends the first control command and controls metal-oxide-semiconductor M1 conducting, and the current signal of metal-oxide-semiconductor M1 flows through the upper end of starting relay, completes starting relay upper end and powers on.When needing the power-off of starting relay upper end, the first control unit then cuts off the first control command, and then metal-oxide-semiconductor M1 closes, and completes the power-off of starting relay upper end; Other first driver element also can adopt other existing switch to realize, as long as the upper end that can control starting relay powers on and power-off.
Described engine management unit specifically comprises the second neutral signal receiving unit 201 and the second driver element 202 and the second control unit (not shown), described second neutral signal receiving unit is connected with vehicle neutral gear sensor, for receiving the neutral signal of neutral gear sensor collection and being transmitted to the second control unit; The first neutral signal receiving unit structure that the second neutral signal receiving unit described in the present embodiment and a key start in control unit is identical, no longer describes in detail here.Described second control unit is connected with the second neutral signal receiving unit 201, second driver element 202 respectively, for receiving the neutral signal of braking pedal signal and the forwarding of the second neutral signal receiving unit, and when receiving neutral signal and braking pedal steps on signal, send the second control command.Wherein the second driver element controls powering on of starting relay second input end (diagram lower end) for sending the second drive singal according to the second control command; Described second driver element comprises the second metal-oxide-semiconductor M2, and the grid of described metal-oxide-semiconductor is connected with the second control unit, and drain electrode connects the second input end of starting relay, source ground; Wherein the second control command is for controlling the opening and closing of metal-oxide-semiconductor M2.When needing output the second drive singal, the second control unit sends the second control command and controls metal-oxide-semiconductor M2 conducting, and the current signal of metal-oxide-semiconductor M2 flows through the lower end of starting relay, completes starting relay lower end and powers on.When needing the power-off of starting relay lower end, the second control unit then cuts off the second control command, and then metal-oxide-semiconductor M2 closes, and completes the power-off of starting relay lower end; Same second driver element also can adopt other existing switch, as long as the lower end that can control starting relay powers on and power-off.
In the present embodiment, the first control unit is only when receiving braking pedal and stepping on the neutral signal of signal and the forwarding of the first neutral receiving element, just sends the first control command; Same second control unit is only when receiving braking pedal and stepping on the neutral signal of signal and the forwarding of the second neutral receiving element, just send the second control command, at this moment the operating mode that vehicle is in neutral position state, braking pedal is stepped on, start even if the first control unit and the second control unit control starter motor by mistake, vehicle also can not move, and ensure that traffic safety; The signal that described braking pedal is stepped on can be transferred to the first control unit and the second control unit by gateway (vehicle body control unit), also can give the first control unit and the second control unit by hard-wire transfer.
Embodiment 3
As shown in Figure 3, the difference of the present embodiment and embodiment 2 is specially: a key starts in control unit and also add Fisrt fault detection unit 103, also add the second fault detection unit 203 in engine management unit, wherein Fisrt fault detection unit is for detecting the first driver element whether fault when detecting the first driver element fault-free, the first driver element fault-free information that sends is to the first control unit and the second control unit, the fault of the first driver element specifically refers to open circuit and the short circuit of metal-oxide-semiconductor M1, second fault detection unit is for detecting the second driver element whether fault when detecting the second driver element fault-free, the second driver element fault-free information that sends is to the first control unit and the second control unit, the fault of the second driver element specifically refers to open circuit and the short circuit of metal-oxide-semiconductor M2.
In the present embodiment the first control unit also for receiving the second driver element fault-free information, braking pedal steps on signal, the first neutral signal receiving unit forwards neutral signal and the first driver element fault-free information time, send the first control command; Same second driver element only receiving the first driver element fault-free information, braking pedal steps on signal, the second neutral signal receiving unit forwards neutral signal and the second driver element fault-free information time, send the second control command.First driver element and the second driver element short circuit may cause starting relay conducting, therefore by the faut detection to the first driver element and the second driver element, the fault message that first control unit and the second control unit grasp driver element in time can disconnect starting relay when the first driver element and the second driver element fault, avoid closed starting relay by mistake, also namely avoid false tripping starter motor, and then ensure vehicle safety.
Embodiment 4
As shown in Figure 4, the present embodiment is to be specially in the difference of embodiment 3: a described key starts control unit and also comprises the 3rd fault detection unit 104, described engine management unit also comprises the 4th fault detection unit 204, after usual starter motor drives engine start, starter motor just needs to cut off, after starter motor cuts off, 3rd fault detection unit and the 4th detection unit detect starter motor whether fault, and starter motor fault message is kept in the nonvolatile storage of self, be sent in vehicle internal networks simultaneously and check, to process in time for driver; Wherein an index of starter motor fault is leaked electricity exactly.
The present embodiment engine management unit comprises engine anti-theft authentication unit and timing unit, and described engine anti-theft authentication unit is used for when starting relay closes or after starting, and carries out engine anti-theft certification; Described timing unit is used for carrying out timing to the unite time of antitheft certification and operating time of starter motor of starter motor; If engine anti-theft authenticated time arrives the first Preset Time, engine anti-theft certification does not complete, and the second driver element disconnects starting relay; If the operating time of starter motor arrives the second Preset Time, the first driver element and/or the second driver element disconnect starting relay to disconnect starter motor.An other key starts in control unit also can arrange timing unit, when engine management unit carries out engine anti-theft certification, by vehicle body control unit, the information of engine anti-theft certification is issued a key and start control unit, the time of timing unit to the time of engine anti-theft certification and starter motor work that one key starts in control unit carries out timing, if engine anti-theft authenticated time arrives the first Preset Time, engine anti-theft certification does not complete, and the first driver element also can disconnect starting relay; Wherein the first Preset Time sets according to actual conditions, such as 5 seconds (s), 10 seconds (s) etc., second Preset Time is the maximum operating time of starter motor, namely starting relay is opened to the time of disconnection, second Preset Time is generally 20 seconds (s), and the second Preset Time is greater than the first Preset Time.
Engine anti-theft certification time-out is an index of engine failure, and therefore starter control system described in the present embodiment is when engine anti-theft certification time-out, and cut off starting relay and disconnect motor, meet accident after avoiding vehicle launch accident.
A kind of method that starter control system controls starter motor is also proposed in the embodiment of the present invention, described starter control system can be the starter control system that in embodiment 1 to embodiment 4, any one describes, and the controlling method of described starter motor comprises the following steps:
The signal of A, acquisition ato unit;
B, a key start control unit and send the first drive singal according to the signal of ato unit starting relay first input end is powered on, and engine management unit sends the second drive singal according to the signal of ato unit starting relay second input end is powered on closed starting relay.
The method that starter control system of the present invention controls starter motor is set forth below by specific embodiment.
Embodiment 5
As shown in Figure 5, the controlling method of described starter motor comprises the following steps:
1011, the signal of ato unit is obtained;
1012, a key starts control unit and sends the first drive singal according to the signal of ato unit starting relay first input end is powered on;
1013, engine management unit sends the second drive singal according to the signal of ato unit starting relay second input end is powered on.
Wherein, the signal of the ato unit described in step 1011 is that driver provides, starts control unit acquisition by a key, and the signal of ato unit is sent to engine management unit by a key startup control unit; First drive singal and the second drive singal are current signal, can send simultaneously, also can timesharing send; After the first input end of starting relay and the second input end power on, the switch of starting relay closes, and starter motor is energized.
The present embodiment starts control unit by a key and engine management unit co-controlling starting relay closes, and is equivalent to provide dual fail-safe to the closed of starting relay, improves the Security that starter motor starts; Step 1012 described in the present embodiment and 1013 can be carried out simultaneously in addition, also can timesharing carry out.
Embodiment 6
As shown in Figure 6, described in the present embodiment, the controlling method of starter motor comprises the following steps:
2011, the signal of ato unit is obtained;
2012, detect vehicle and whether be in neutral position state, detect braking pedal simultaneously and whether step on;
If detect and show that vehicle is in neutral position state and braking pedal is stepped on, then perform step 2013, a key start control unit and send the first drive singal according to the signal of ato unit starting relay first input end is powered on, and perform step 2014, engine management unit sends the second drive singal according to the signal of ato unit that starting relay second input end is powered on.
After obtaining ato unit signal, the state of detection residing for transmission for vehicles and the state of braking pedal, only when vehicle is in neutral position state and braking pedal is stepped on, just control starting relay to close, at this moment because vehicle is in the operating mode that neutral position state and braking pedal step on, even if starting relay closes also can not cause vehicle launch by mistake, avoid closing causing potential safety hazard by mistake.
Embodiment 7
As shown in Figure 7, after the signal obtaining ato unit, also carry out step 20111, detect the first driver element whether fault testing result is sent to engine management unit, and carry out step 20112, detect the second driver element whether fault testing result sent to a key to start control unit;
If engine management unit receives the first driver element fault-free information, and a key startup control unit receives the second driver element fault-free information, then perform step 2013 and 2014.
Do not receive the testing result information of the second driver element if a key starts control unit or receive fault message, then not performing step 2013; If engine management unit does not receive the testing result information of the first driver element or receives fault message, also do not perform step 2014.
Wherein step 20111 and step 20112 can be carried out simultaneously, also can timesharing carry out, and preferably carry out simultaneously, reach the synchronization control to starting relay like this.
Embodiment 8
As shown in Figure 8, after the first input end of starting relay and the second input end power on and cause starting relay closed, also following steps are carried out:
301, periodically detect the first driver element whether there is fault and testing result is sent to engine management unit;
302, periodically detect the second driver element whether there is fault and testing result sent to a key to start control unit;
If 303 engine management unit periodically do not receive the first driver element fault-free information, then cut off the second drive singal to disconnect starting relay, if a key starts control unit periodically do not receive the second driver element fault-free information, then cut off the first drive singal to disconnect starting relay.
Wherein the faut detection cycle of the first driver element and the faut detection cycle of the second driver element determine according to actual conditions, do not limit here, such as, can be to detect once every 10 seconds (s).Engine management unit does not periodically receive the first driver element fault-free information and comprises the first driver element fault and the first driver element fault-free but occurred problem in information transmission, causes not receiving; A same key starts control unit and does not periodically receive the second driver element fault-free information and also comprise the second driver element fault and the second driver element fault-free but occurred problem in information transmission, causes not receiving.The failure detection result of the first driver element is transmitted to engine management unit by vehicle body control unit, and the failure detection result of same second driver element is transmitted to a key by vehicle body control unit and starts control unit; A cut-out in first drive singal and the second drive singal, starting relay disconnects, and when needs cut off starting relay, can be cut off the first drive singal and the second drive singal, also can be respective cut-out simultaneously.
After starting relay is closed, periodically failture evacuation is carried out to the first driver element and the second driver element, be conducive to eliminating vehicle safety hidden danger.
Embodiment 9
As shown in Figure 9, when starting relay closes or closed after, further comprising the steps of: 401, to carry out the antitheft certification of motor and timing, and timing is carried out to the operating time of starter motor;
If 402 engine anti-theft authenticated times arrive the first Preset Time, engine anti-theft certification does not complete, then cut off the first drive singal and/or the second drive singal to disconnect starting relay;
If the operating time of 405 starter motors arrives the second Preset Time, the first driver element and/or the second driver element disconnect starting relay to disconnect starter motor.
The antitheft certification of motor is completed by the engine anti-theft authentication unit in engine management unit, and the first Preset Time set according to the regular authentication time of motor, and the first Preset Time of different motor is different, does not limit here; Second Preset Time is the maximum operating time of starter motor, and also namely engine start relay is opened to the time of disconnection, and the second Preset Time is generally 20 seconds (s), and the second Preset Time is greater than the first Preset Time.
The time time-out of engine anti-theft certification, illustrating that engine anti-theft certification has problem, may be authentification failure or other problem, at this moment cuts off starting relay and avoids safety problem occurs.
Further, if engine anti-theft authentication success, further comprising the steps of:
403, send the index signal of engine anti-theft authentication success and detect engine speed;
If 4031 engine speed are greater than predefined value, cut off the first drive singal and/or the second drive singal to disconnect starting relay.
Wherein, the index signal sending engine anti-theft authentication success can perform motor oil spout igniting for prompting, and the predefined value of the present embodiment is 500 turns, and certain predefined value can set according to actual needs, does not limit here; When engine speed is greater than 500 turns, illustrate that motor successfully starts, at this moment cut off starting relay and avoid starter motor to work long hours, starter motor works long hours and adds energy consumption, starter motor or overrunning clutch may be caused to burn out simultaneously, even vehicle fire accident occur.
Further, if engine anti-theft authentification failure, further comprising the steps of:
404, engine lock stop signal is sent;
4041, according to engine locking signal cut first drive singal and/or the second drive singal to disconnect starting relay.
Wherein, engine lock stop signal is sent by engine management unit, and export to a key startup control unit through vehicle network bus, one key startup control unit receives engine lock stop signal can cut off the first drive singal disconnection starting relay, increases the selectivity disconnecting starting relay.
Embodiment 10
As shown in Figure 10, be greater than predefined value in engine speed, after normal working of engine, disconnecting starting relay makes starter motor quit work, in order to the state of the starter motor after starting relay disconnection can be learnt, therefore after disconnection starting relay, further comprising the steps of:
501, faut detection is carried out to starter motor;
If 502 starter motors exist fault, then send starter motor fault message and preserve.
The starter motor fault of described detection refers to detect on starter motor whether have electrical signal, if after starting relay disconnection, starter motor also has electrical signal, explanation starter motor has problems, starter motor fault message persistence is issued in vehicle gateway, checks for driver, to overhaul in time.
Below the preferred embodiments of the present invention are described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-described embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned specific embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (17)
1. a starter control system, is characterized in that, comprises an interconnective key and starts control unit, engine management unit and starting relay;
A described key starts control unit and is connected with the first input end of starting relay, power on and power-off for controlling starting relay first input end, and after receiving the signal of ato unit, send the first drive singal the first input end of starting relay is powered on;
Described engine management unit is connected with the second input end of starting relay, power on and power-off for controlling starting relay second input end, and after receiving the signal of ato unit, send the second drive singal the second input end of starting relay is powered on;
Make starting relay close after the first input end of described starting relay and the second input end power on, described starting relay is connected with starter motor, and described starting relay is closed makes described starter motor start.
2. starter control system according to claim 1, is characterized in that, a described key starts control unit and comprises:
First neutral signal receiving unit, for receiving the neutral signal of neutral gear sensor collection and sending to the first control unit;
First control unit, for receiving the neutral signal of braking pedal signal and the forwarding of the first neutral signal receiving unit, and when receiving neutral signal and braking pedal steps on signal, sends the first control command;
First driver element, for sending the first drive singal according to the first control command;
Described engine management unit comprises:
Second neutral signal receiving unit, for receiving the neutral signal of neutral gear sensor collection and sending to the second control unit;
Second control unit, for receiving the neutral signal of braking pedal signal and the forwarding of the second neutral signal receiving unit, and when receiving neutral signal and braking pedal steps on signal, sends the second control command;
Second driver element, for sending the second drive singal according to the second control command.
3. starter control system according to claim 2, it is characterized in that, a described key starts control unit, engine management unit is connected with brake pedal switch respectively by rigid line, and a described key is started control unit and is connected by vehicle body control unit with engine management unit;
Described braking pedal steps on signal from described rigid line or from described vehicle body control unit.
4. starter control system according to claim 2, is characterized in that,
Described first neutral signal receiving unit comprises the first resistance element and the second resistance element, described first resistance element one end ground connection, and the other end is used for being connected with neutral gear sensor;
Described second resistance element one termination first predeterminated voltage, the other end is used for being connected with neutral gear sensor.
5. starter control system according to claim 2, it is characterized in that, described first driver element comprises the first metal-oxide-semiconductor, and the grid of described first metal-oxide-semiconductor is connected with the first control unit, drain electrode connection second predeterminated voltage, source electrode connects the first input end of starting relay;
Described second driver element comprises the second metal-oxide-semiconductor, and the grid of described second metal-oxide-semiconductor is connected with the second control unit, and drain electrode connects the second input end of starting relay, source ground.
6. starter control system according to claim 2, is characterized in that, a described key starts control unit and also comprises:
Fisrt fault detection unit, for detecting the first driver element whether fault, and when detecting the first driver element fault-free, the first driver element fault-free information that sends is to the first control unit and the second control unit.
7. starter control system according to claim 6, is characterized in that, described engine management unit also comprises:
Second fault detection unit, for detecting the second driver element whether fault, and when detecting the second driver element fault-free, the second driver element fault-free information that sends is to the first control unit and the second control unit;
Described first control unit also for receiving the second driver element fault-free information, braking pedal steps on signal, the first neutral signal receiving unit forwards neutral signal and the first driver element fault-free information time, send the first control command;
Described second control unit also for receiving the first driver element fault-free information, braking pedal steps on signal, the second neutral signal receiving unit forwards neutral signal and the second driver element fault-free information time, send the second control command.
8. starter control system according to claim 1, is characterized in that, also comprises the engine anti-theft authentication unit be located in engine management unit, and is located at the timing unit in a key startup control unit and/or engine management unit;
Described engine anti-theft authentication unit is used for when starting relay closes or after starting, and carries out engine anti-theft certification;
Described timing unit is used for carrying out timing to the time of engine anti-theft certification and the operating time of starter motor;
If engine anti-theft authenticated time arrives the first Preset Time, engine anti-theft certification does not complete, and controls the first driver element and/or the second driver element disconnection starting relay;
If the operating time of starter motor arrives the second Preset Time, control the first driver element and/or the second driver element and disconnect starting relay to disconnect starter motor.
9. starter control system according to claim 1, is characterized in that, is provided with in the 3rd fault detection unit and/or engine management unit and is provided with the 4th fault detection unit in a described key startup control unit;
Described 3rd fault detection unit and/or the 4th fault detection unit are used for, after starting relay disconnects, carrying out faut detection, and when detecting that starter motor exists fault, sending and preserving starter motor fault message starter motor.
10. starter control system controls a method for starter motor, and it is characterized in that, described starter control system is the starter control system in claim 1-9 described in any one;
The controlling method of described starter motor comprises the following steps:
The signal of A, acquisition ato unit;
B, a key start control unit and send the first drive singal according to the signal of ato unit starting relay first input end is powered on, and engine management unit sends the second drive singal according to the signal of ato unit starting relay second input end is powered on closed starting relay.
11. starter control systems according to claim 10 control the method for starter motor, it is characterized in that, after step A, before step B, further comprising the steps of:
Detect vehicle and whether be in neutral position state, detect braking pedal simultaneously and whether step on;
If detect and show that vehicle is in neutral position state and braking pedal is stepped on, then perform step B.
12. starter control systems according to claim 10 control the method for starter motor, it is characterized in that, further comprising the steps of:
Detect vehicle and whether be in neutral position state, detect braking pedal whether to step on, detect the first driver element whether fault testing result is sent to engine management unit, and detect the second driver element whether fault testing result sent to a key to start control unit;
If detect and show that vehicle is in neutral position state, braking pedal is stepped on, and engine management unit receives the first driver element fault-free information and a key startup control unit receives the second driver element fault-free information, then perform step B.
13. starter control systems according to claim 10 control the method for starter motor, it is characterized in that, after starting relay is closed, periodically detects the first driver element and whether there is fault and testing result is sent to engine management unit;
If engine management unit does not periodically receive the first driver element fault-free information, then cut off the second drive singal to disconnect starting relay;
After starting relay is closed, periodically detects the second driver element and whether there is fault and testing result sent to a key to start control unit;
If a key starts control unit periodically do not receive the second driver element fault-free information, then cut off the first drive singal to disconnect starting relay.
14. starter control systems according to claim 10 control the method for starter motor, it is characterized in that, described starter control system also comprises the engine anti-theft authentication unit be located in engine management unit, and is located at the timing unit in a key startup control unit and/or engine management unit;
When starting relay closes or closed after, carry out the antitheft certification of motor and timing, and timing carried out to the operating time of starter motor;
If the time of the antitheft certification of motor arrives the first Preset Time, engine anti-theft certification does not complete, then cut off the first drive singal and/or the second drive singal to disconnect starting relay;
If the operating time of starter motor arrives the second Preset Time, the first driver element and/or the second driver element disconnect starting relay to disconnect starter motor.
15. starter control systems according to claim 14 control the method for starter motor, it is characterized in that, if engine anti-theft authentication success, then send the index signal of engine anti-theft authentication success and detect engine speed;
If engine speed is greater than predefined value, then cut off the first drive singal and/or the second drive singal to disconnect starting relay.
16. starter control systems according to claim 14 control the method for starter motor, it is characterized in that, if engine anti-theft authentification failure, then send engine lock stop signal;
According to engine locking signal cut first drive singal and/or the second drive singal to disconnect starting relay.
17. starter control systems according to claim 15 control the method for starter motor, it is characterized in that, further comprising the steps of:
After disconnection starting relay, faut detection is carried out to starter motor;
If starter motor exists fault, then send starter motor fault message and preserve.
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| CN201310030002.0A CN103967679B (en) | 2013-01-25 | 2013-01-25 | Starter control system controls method and the starter control system thereof of starter motor |
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| CN201310030002.0A CN103967679B (en) | 2013-01-25 | 2013-01-25 | Starter control system controls method and the starter control system thereof of starter motor |
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| CN106194541B (en) * | 2016-08-31 | 2018-06-26 | 东风汽车公司 | One-touch automobile starting protection circuit and its method |
| CN107448342B (en) * | 2017-07-27 | 2019-02-26 | 雷沃重工股份有限公司 | A kind of engine startup method and system |
| CN108528227B (en) * | 2018-03-23 | 2024-04-30 | 苏州弗尔赛能源科技股份有限公司 | Electric automobile range extender control system and control method and electric automobile |
| JP2019178950A (en) * | 2018-03-30 | 2019-10-17 | 日本特殊陶業株式会社 | Measurement device |
| CN109080582B (en) * | 2018-08-20 | 2020-06-09 | 北京新能源汽车股份有限公司 | Vehicle starting control method and device and automobile |
| CN112319458B (en) * | 2019-07-31 | 2022-03-18 | 比亚迪股份有限公司 | Vehicle, control method and device thereof, electronic equipment and storage medium |
| CN113119908B (en) * | 2019-12-31 | 2022-06-17 | 上海海拉电子有限公司 | Vehicle starting system and vehicle starting method based on one-key starting |
| CN111483428A (en) * | 2020-03-30 | 2020-08-04 | 徐州徐工矿业机械有限公司 | Keyless starting control method for engineering machinery |
| CN113494407B (en) * | 2020-04-08 | 2022-08-16 | 广州汽车集团股份有限公司 | Engine starting control based on motor speed regulation |
| CN111550345B (en) * | 2020-05-29 | 2022-04-26 | 潍柴动力股份有限公司 | Cold start control method and device and electronic equipment |
| CN114962111A (en) * | 2022-04-27 | 2022-08-30 | 一汽奔腾轿车有限公司 | Engine starting failure troubleshooting method |
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