CN105128694A - Method and apparatus for controlling entire vehicle controller power system of electric car - Google Patents
Method and apparatus for controlling entire vehicle controller power system of electric car Download PDFInfo
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- CN105128694A CN105128694A CN201410242741.0A CN201410242741A CN105128694A CN 105128694 A CN105128694 A CN 105128694A CN 201410242741 A CN201410242741 A CN 201410242741A CN 105128694 A CN105128694 A CN 105128694A
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Abstract
The invention discloses a method and apparatus for controlling an entire vehicle controller power system of an electric car, and relates to the electric car control field. The method includes detecting the operation signals including key signals, charging signals and bus signals of the electric car, converting the detected operation signals to obtain wake-up signals to wake up the power system, and inputting the wake-up signals to the power system to start the power system. Power on/off of an entire vehicle controller is realized through inputting various types of operation signals.
Description
Technical field
The present invention relates to the control field of electronlmobil, particularly a kind of control method of vehicle control unit of electric vehicle (VehicleControlUnit, VCU) power-supply system and relevant control setup.
Background technology
VCU is the core component of electric automobile whole-control system.Particularly, when electronlmobil is started by key, VCU internal electric source chip receives enable signal, and power supply chip is started working, and export the power line voltage meeting functional chip requirement, VCU is waken up, and electronlmobil normally starts.When electronlmobil is without demand for control, such as dead ship condition, VCU performs lower electronic work, particularly, VCU receives lower electric command signal, and as electric signal under key, VCU is by gathering lower electric command signal, and in conjunction with the control logic that main control chip inside presets, carry out the process of cut-out enable signal to the power supply chip of VCU inside, power supply chip quits work, other each functional chip come out of action power supplys in VCU, VCU enters power-down state, and electronlmobil is normally closed.
Finding in the research process to existing electronlmobil VCU power-on and power-off control circuit, there is following major defect in existing VCU power-on and power-off control circuit:
The first, the power-on and power-off control circuit of existing electronlmobil VCU imitates orthodox car controller power-on and power-off control circuit and realizes, VCU can only be waken up by key, and do not consider the particularity of electronlmobil, namely electronlmobil also needs the wake source being different from orthodox car by charging signals etc. to wake up;
The second, the power-on and power-off energizing signal of existing electronlmobil VCU, cannot be waken up by bus signals, input signal types is restricted, and cannot meet the agile kernel model of electronlmobil function;
Three, the power-on and power-off control operation of existing electronlmobil VCU, not only needs the circuit of VCU inside, also depend on outside relay to supply line together with, add the risk of VCU power-on and power-off failure.
Summary of the invention
The object of the present invention is to provide a kind of control method and device of vehicle control unit of electric vehicle power-supply system, existing electronlmobil wake source can be solved better single, the problem can only waken up by key.
According to an aspect of the present invention, provide a kind of control method of vehicle control unit of electric vehicle power-supply system, comprising:
To electronlmobil at least comprise key signal, charging signals, bus signals polytype operation signal detect;
The operation signal detected being changed, obtaining the wake-up signal for waking power-supply system up;
Export described wake-up signal to described power-supply system, to start described power-supply system.
Preferably, after the described power-supply system of startup, also comprise:
Carry out periodicity to polytype operation signal of electronlmobil to detect;
If described operation signal detected in sense cycle, then generate delay control signal;
Export described delay control signal to described power-supply system, thus keep described power-supply system normally to work.
Preferably, also comprise:
If described operation signal do not detected in sense cycle, then start time meter and carry out timing;
In the timing time of described time meter, generate delay control signal, and export described power-supply system to, thus in described timing time, keep described power-supply system normally to work.
Preferably, also comprise:
In described timing time, polytype operation signal of electronlmobil is detected;
If operation signal detected not yet, then generate and be used for making power-supply system enter the sleep signal of dormant state, and export described power-supply system to, thus make described power-supply system enter dormant state, otherwise, abort timer timing.
Preferably, after the described power-supply system of startup, also comprise:
External input voltage is gathered, if the input voltage gathered is not in default input voltage range, then generate and be used for making power-supply system enter the sleep signal of dormant state, and export described power-supply system to, thus make described power-supply system enter dormant state.
According to a further aspect in the invention, provide a kind of control setup of vehicle control unit of electric vehicle power-supply system, comprising:
Detection module, for electronlmobil at least comprise key signal, charging signals, bus signals polytype operation signal detect;
Modular converter, for changing the operation signal detected, obtains the wake-up signal for waking power-supply system up;
Output module, for exporting described wake-up signal to described power-supply system, to start described power-supply system.
Preferably, also comprise:
Time delay module, for after the described power-supply system of startup, when described detection module detects operation signal in sense cycle, generate delay control signal, and export described delay control signal to described power-supply system, thus described power-supply system is kept normally to work.
Preferably, also comprise:
Timing module, for after the described power-supply system of startup, described detection module starts and timing when described operation signal not detected in sense cycle, make described time delay module in its timing time, generate delay control signal, and export described power-supply system to, thus in described timing time, described power-supply system is kept normally to work.
Preferably, also comprise:
Sleep block, during for operation signal not detected in described timing time yet, generating and being used for making power-supply system enter the sleep signal of dormant state, and exporting described power-supply system to, thus making described power-supply system enter dormant state.
Preferably, also comprise:
System protection module; for after the described power-supply system of startup; external input voltage is gathered; if the input voltage gathered is not in default input voltage range; then generate and be used for making power-supply system enter the sleep signal of dormant state; and export described power-supply system to, thus described power-supply system is made to enter dormant state.
Compared with prior art, beneficial effect of the present invention is:
1, by the present invention, electronlmobil wakes up by the wake source (such as charging signals) being different from orthodox car;
2, by the present invention, electronlmobil wakes up by bus signals, and signal type is unrestricted, meets the requirement on flexibility of electronlmobil Functional Design;
3, by the present invention, electronlmobil VCU power-on and power-off control operation, no longer need outside relay to supply line together with, reduce the risk of VCU power-on and power-off failure.
Accompanying drawing explanation
Fig. 1 is the control method functional block diagram of the VCU power-supply system that the embodiment of the present invention provides;
Fig. 2 is the diagram of circuit waking VCU power-supply system up that the embodiment of the present invention provides;
Fig. 3 is the diagram of circuit that maintenance VCU power-supply system that the embodiment of the present invention provides normally works;
Fig. 4 is the first structured flowchart of the control setup of the VCU power-supply system that the embodiment of the present invention provides;
Fig. 5 is the circuit diagram of the first structured flowchart shown in Fig. 4;
Fig. 6 is the second structured flowchart of the control setup of the VCU power-supply system that the embodiment of the present invention provides;
Fig. 7 is the circuit diagram of the second structured flowchart shown in Fig. 6.
Detailed description of the invention
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Fig. 1 is the control method functional block diagram of the VCU power-supply system that the embodiment of the present invention provides, and as shown in Figure 1, step comprises:
Step S101, to electronlmobil at least comprise key signal, charging signals, bus signals polytype operation signal detect.
Step S102, the operation signal detected being changed, obtaining the wake-up signal for waking power-supply system up.
Step S103, export described wake-up signal to described power-supply system, to start described power-supply system.That is, after power-supply system starts, power-supply system is that VCU powers, thus realizes the upper electric control of VCU.
Fig. 2 is the diagram of circuit waking VCU power-supply system up that the embodiment of the present invention provides, and as shown in Figure 2, step comprises:
Step S201, in real time detection at least comprise polytype operation signal of key signal, charging signals, bus signals.
Step S202, judge whether operation signal to be detected, if operation signal detected, then perform step S203, otherwise return and perform step S201.
Step S203, detected operation signal is converted to wake-up signal, and exports power-supply system to.
Step S204, power-supply system start after receiving described wake-up signal, and power to VCU.
Step S205, VCU micro controller system power on.
Fig. 3 is the diagram of circuit that maintenance VCU power-supply system that the embodiment of the present invention provides normally works, and as shown in Figure 3, step comprises:
Step S301, periodically detection at least comprise polytype operation signal of key signal, charging signals, bus signals.
Step S302, judge whether operation signal detected within the current detection cycle, if operation signal detected, then generate delay control signal, and export described power-supply system to, normally work to keep described power-supply system, return simultaneously and perform step S301, if operation signal do not detected, then perform step S303.
Step S303, startup time meter start timing.
Further, in the timing time of described time meter, generate delay control signal, and export described power-supply system to, thus in described timing time, keep described power-supply system normally to work.In other words, when operation signal not detected in some sense cycle, described power-supply system can not be stopped at once powering, but will carry out the time delay of a period of time, make described power-supply system supply regular power within this period, VCU normally works.
Step S304, judge whether operation signal detected in timing time, if operation signal detected, then perform step S307, otherwise perform step S305.
Step S305, generation are used for making power-supply system enter the sleep signal of dormant state, and export described power-supply system to, thus make described power-supply system enter dormant state, stop power supply.
Electricity under step S306, VCU micro controller system.
Step S307, abort timer timing, counter O reset.
Visible, the present invention is by controlling the control realization VCU power-on and power-off of power-supply system.
Further, after the described power-supply system of startup, can also gather external input voltage, if the input voltage gathered is not in default input voltage range, then generate and be used for making power-supply system enter the sleep signal of dormant state, and export described power-supply system to, make described power-supply system enter dormant state, when avoiding external input voltage too high or too low, influential system normally works, even system failure.
By the technical scheme of the present embodiment, when electronlmobil charges under parked state, power-supply system can normally for VCU powers, thus make VCU control effectively to charging operations.It should be noted that when key signal namely not detected, then VCU can not control motor start-up if the operation signal detected is only charging signals.
In addition, present invention also offers a kind of control setup of vehicle control unit of electric vehicle power-supply system, comprising: detection module, modular converter, output module, time delay module, timing module, sleep block.Wherein: described detection module to electronlmobil at least comprise key signal, charging signals, bus signals polytype operation signal detect, when operation signal being detected, described modular converter is changed detected operation signal, obtain the wake-up signal for waking power-supply system up, and export described power-supply system to by described output module, power for the described power-supply system of startup, VCU powers on.After the described power-supply system of startup, described detection module periodically detects operation signal, if operation signal detected in sense cycle, then described time delay module generates delay control signal, and export described delay control signal to described power-supply system, thus described power-supply system is kept normally to work; If operation signal do not detected in sense cycle, then described timing module starts and timing, if operation signal detected not yet in described timing time, so described sleep block generates and is used for making power-supply system enter the sleep signal of dormant state, and export described power-supply system to, thus making described power-supply system enter dormant state, described power-supply system is stopped power supply, point under VCU.Wherein, described time delay module, in described timing time, generate delay control signal, and export described power-supply system to, thus described power-supply system can keep normal work in described timing time.Further; for avoiding the too high or too low impact on system of external input voltage; described control setup can also comprise system protection module; described system protection module is after the described power-supply system of startup; external input voltage is gathered, if the input voltage gathered is not in default input voltage range, then generates and be used for making power-supply system enter the sleep signal of dormant state; and export described power-supply system to, thus described power-supply system is made to enter dormant state.
In said apparatus, described time delay module, timing module, sleep block can by VCU chip microcontroller.Below by Fig. 4-Fig. 7, the present invention is further described.
Fig. 4 is the first structured flowchart of the control setup of the VCU power-supply system that the embodiment of the present invention provides, as shown in Figure 4, comprise: the first operation signal input circuit 1, second operation signal input circuit 2, the power supply stabilization circuit 3 be connected with the second operation signal input circuit 2 with described first operation signal input circuit 1, the delay control circuit 4 be connected with described power supply stabilization circuit, and power line voltage Acquisition Circuit 5.
Described first operation signal input circuit 1 has many operation signals input branch road (i.e. at least two input branch roads), can be used for gathering polytype operation signal, every bar branch road receives a kind of operation signal, such as, and accessible key signal, charging signals etc.
Described second operation signal input circuit 2 can adopt different bus architecture according to specific implementation, comprises LIN, CAN, FLEXRAY etc., and the core mode of functional realiey is realized by the transceiving chip with arousal function in corresponding bus architecture in fact.When transceiving chip produces the operation signal of high level according to the controlling functions of setting, described power supply stabilization circuit 3 can receive the wake-up signal of high level, and starts working, and outwards exports the working power voltage that VCU is normally powered on.Described second operation signal input circuit 2 is controlled by the VCU Single-chip Controlling port be attached thereto.
The device that the present embodiment provides has the input branch road of many operation signals, and the input of supporting bus signal, can be used for dissimilar operation signal and VCU is waken up.
In described power supply stabilization circuit 3 with power supply voltage stabilizing chip for core, realize VCU power output function.When described power supply stabilization circuit 3 receives at least one wake-up signal in described first operation signal input circuit 1 and/or the second operation signal input circuit 2, described power supply stabilization circuit 3 is output services voltage outwards, and VCU is waken up.
Described delay control circuit 4 is connected with the control port of VCU micro controller system.After VCU normally powers on, the micro controller system in VCU sends the delayed control signal of high level to delay control circuit 4.This delay control signal is received by described power supply stabilization circuit 3 by delay control circuit 4, to maintain the normal output function of power supply, until sending delay control signal by the micro controller system of VCU is low level, and each operation signal of described first operation signal input circuit 1 and the second operation signal input circuit 2 is all low level, the dormancy of described power supply stabilization circuit 3, stop output services voltage, electricity under VCU.
Described power line voltage Acquisition Circuit 5 is connected with the one-chip machine port in VCU.This circuit has two effects: one is that the operation signal of each input branch road judging described first operation signal input circuit 1 and the second operation signal input circuit 2 has stateless; After the monitored operation signal in described first operation signal input circuit 1 and the second operation signal input circuit 2 does not have, described power line voltage Acquisition Circuit 5 is to the one-chip machine port output low level signal in VCU, now, micro controller system in VCU, according to the control logic code of design in advance, judges whether VCU meets lower electric requirement; If meet, then send and be used for making power-supply system enter the low level signal of dormant state to described delay control circuit 4, after described power supply stabilization circuit 3 receives this low level signal, voltage of cutting off the electricity supply, electricity under VCU; If do not meet, then send the high level signal of maintenance work voltage to described delay control circuit 4, after described power supply stabilization circuit 3 receives this high level signal, continue to maintain power supply voltage and export; Wherein, micro controller system in above-mentioned VCU is according to the control logic code of design in advance, judge whether VCU meets lower electricity and require specifically to comprise: when operation signal not detected, carry out timing, if operation signal detected not yet in predetermined timing time, then after described predetermined timing time arrives, micro controller system in VCU is to described delay control circuit 4 output low level signal, thus make described power supply stabilization circuit 3 enter dormant state, otherwise, described delay control circuit 4 exports high level signal, thus makes described power supply stabilization circuit 3 continuous firing.It two is to judge that whether external input voltage is normal, if described external input voltage is not in default input voltage range, then send and be used for making power-supply system enter the low level signal of dormant state, and export described power-supply system to, thus make described power-supply system enter dormant state.
The present invention not only meets the design requirement to full-vehicle control in similar orthodox car start-up course, and adapt to electronlmobil self to the particularity of full-vehicle control in power-on and power-off control, such as electronlmobil not only needs at the full-vehicle control starting and need under motoring condition normal reliable, and under parked state, because electronlmobil needs to possess charge function, also need to be control effectively by VCU.This is that the electronlmobil VCU continuing to use traditional vehicle power-on and power-off control technology cannot meet.And the present invention can pass through controller internal hardware circuit realiration completely, without the need to relying on the outer members such as relay, therefore improve the reliability that VCU power-on and power-off operation controls, reducing vehicle production cost, facilitate vehicle electric element layout.Further, the present invention not only can be waken up by the operation signal of the rigid line inputs such as charging signals and key signal, and wake operation can be carried out by the bus signals on vehicle bus network to VCU, not only enrich the form of arouse machine processed, and improve the alerting ability of whole vehicle functions design.
Device of the present invention can be integrated circuit structure, and it is by controlling power-supply system, realizes VCU power-on and power-off and controls.Fig. 5 is the circuit diagram of the first structured flowchart shown in Fig. 4.This circuit comprises: the first operation signal input circuit 1, second operation signal input circuit 2, the power supply stabilization circuit 3 be connected with the second operation signal input circuit 2 with described first operation signal input circuit 1, the delay control circuit 4 be connected with described power supply stabilization circuit, and power line voltage Acquisition Circuit 5.
Described first operation signal input circuit 1 can comprise multiple first diode D1, multiple first electric capacity C1, and the first resistance R1.Wherein, the negative electrode of described multiple first diode D1 is in parallel, and is connected with one end of described first resistance R1; The anode of described multiple first diode D1 is connected with one end of described multiple first electric capacity C1 respectively, and is connected with the input end of multiple operation signal respectively; One end ground connection be not connected with described first diode anode of described multiple first electric capacity C1; One end that described first resistance R1 is not connected with described multiple first diode cathode is connected with described power supply stabilization circuit 2.Above-mentioned first electric capacity C1 can to input operation signal carry out filtering, prevent VCU be interfered signal effect and produce maloperation.Above-mentioned first diode D1 plays a protective role, prevent the input port of operation signal under special circumstances electric current pour in down a chimney, damage VCU internal hardware circuit.
Described second operation signal input circuit 2 comprises bus signals transceiving chip U1 and the peripheral circuit thereof that has arousal function.The arousal function pin 7 of described bus signals transceiving chip U1 is connected with the anode of one of them the first diode D1, and is connected with one end of one of them the first electric capacity C1.
Described power supply stabilization circuit 3 comprises power supply voltage stabilizing chip U2 and the peripheral circuit thereof that has ena-bung function.The enable pin 2 of described power supply voltage stabilizing chip U2 is connected with described first operation signal input circuit 1, second operation signal input circuit 2.When the enable pin 2 of the power supply voltage stabilizing chip U2 in described power supply stabilization circuit 3 is high level, chip U2 starts working, and VCU normally powers on.When each operation signal and delay control signal are all low level, chip U2 quits work, electricity under VCU.
Described delay control circuit 4 comprises the second diode and the second electric capacity.Wherein, the described anode of the second diode is connected with the one-chip machine port of VCU, and negative electrode is connected with described power supply stabilization circuit 3 by described first resistance.Described second electric capacity one end connects the anode of described second diode, other end ground connection.When all operations signal is all low level, the micro controller system of VCU is according to control logic, high level output is kept to described delay control circuit 4, to make described power supply stabilization circuit 3 continuous firing, when meeting outage condition, the micro controller system of VCU is to described delay control circuit 4 output low level, and power supply stabilization circuit 3 quits work, electricity under VCU.
Described power line voltage Acquisition Circuit 5 comprises the 3rd diode, the second resistance, the 3rd resistance, the 3rd electric capacity and the 4th electric capacity.Wherein, the 3rd diode cathode is connected with the external input power of 12V with after second resistance one end parallel connection, the 3rd diode anode ground connection.3rd resistance, the 3rd electric capacity are connected with one end be not connected with the 3rd diode cathode of the second resistance with after the 4th electric capacity one end parallel connection, the other end ground connection of the 3rd resistance, the 3rd electric capacity and the 4th electric capacity.Above-mentioned 3rd diode is schottky diode, and when effect is to prevent power line voltage generation surge, overtension damages VCU hardware circuit.Above-mentioned second resistance and the 3rd resistance carry out dividing potential drop to input voltage, the voltage value after dividing potential drop, be in micro controller system all the time and can allow in analog-to-digital number range in the voltage range of the work of permission.Above-mentioned second electric capacity and the 3rd electric capacity are filter capacitor.
The circuit that the present embodiment provides can carry out power-on and power-off control, and its accessible site is in VCU.
Fig. 6 is the second structured flowchart of the control setup of the VCU power-supply system that the embodiment of the present invention provides, as shown in Figure 6, comprise: the first operation signal input circuit 1, second operation signal input circuit 2, the power supply stabilization circuit 3 be connected with the second operation signal input circuit 2 with described first operation signal input circuit 1, the delay control circuit 4 be connected with described power supply stabilization circuit, and power line voltage Acquisition Circuit 5.Second operation signal input circuit 2, power line voltage Acquisition Circuit 5, delay control circuit 4 are connected with the micro controller system of power supply stabilization circuit 3 respectively at VCU.
Described first operation signal input circuit 1 comprises multiple operation signal input branch road, each input branch road collection and input dissimilar operation signal, specifically can carry out relative set according to the kind of access operation signal, increase or reduce the quantity of operation signal input branch road.In the present embodiment, described first operation signal input circuit 1 comprises two and wakes input branch road up, is respectively used to input key signal and charging signals.
Described second operation signal input circuit 2 can be arranged to different bus forms, and the present embodiment adopts CAN to wake form up.The output disable signal of described second operation signal input circuit 2 is connected with described first operation signal input circuit 1 as one of operation signal, and described second operation signal input circuit 2 can be different according to mode of operation, send VCU wake-up signal in good time.When in each branch road of described first operation signal input circuit 1, at least one operation signal is in high level state, power supply stabilization circuit 3 is started working after receiving this high level signal, and VCU powers on.The voltage that micro controller system sends high level state maintains signal to delay control circuit, and power supply stabilization circuit keeps normal working.
Described power line voltage Acquisition Circuit 5 is connected with the one-chip machine port of VCU.
Described power supply stabilization circuit 3, when receiving high level signal, carries out voltage output, when receiving low level, closing voltage and exporting.Specifically, in operation signal input branch road, when having at least the operation signal of an input branch road to be high level, power supply stabilization circuit 3 receives high level signal, and the power supply voltage stabilizing chip of power supply stabilization circuit 3 starts output voltage, and VCU powers on; After VCU powers on, gather power line voltage, and send high level signal to delay control circuit 4, power supply stabilization circuit 3 ME for maintenance exports.When all operations signal input branch road all output low level signal time, VCU micro controller system, after meeting lower electric control logical condition, sends low level signal to delay control circuit 4; After power supply stabilization circuit 3 receives this low level signal, shutoff voltage exports, electricity under VCU; That is, when wake-up signal input circuit all branches is all low level state, power line voltage Acquisition Circuit receives this low level signal, and the micro controller system of VCU, after the delay time of one section of setting, sends low level signal to delay control circuit.Power supply stabilization circuit quits work after receiving this low level signal, electricity under VCU.
Fig. 7 is the circuit diagram of the second structured flowchart shown in Fig. 6, as shown in Figure 7, wherein:
First operation signal input circuit 1 comprises three input branch roads, accesses key signal, charging signals and CAN signal respectively.Specifically comprise 3 the first diode D1,3 the first electric capacity C1,1 the first resistance R1.Wherein, the negative electrode of described 3 the first diode D1 is in parallel, and is connected with one end of the first resistance R1; The anode of 3 the first diode D1 accesses key signal, charging signals and CAN signal respectively, and is connected respectively at one end of 3 the first electric capacity C1; One end ground connection that first electric capacity C1 is not connected with the first diode D1 anode.One end that first resistance R1 is not connected with the first diode D1 negative electrode is connected with power supply stabilization circuit 3.
Second operation signal input circuit 2 comprises bus transceiving chip and peripheral circuit thereof.Wherein, the anode of one of 3 first diode D1 of forbid manufacture output signal and the first operation signal input circuit 1 of the second operation signal input circuit 2 is connected; The control signal of bus transceiving chip is connected with VCU micro controller system corresponding port.
Power supply stabilization circuit 3 comprises power supply voltage stabilizing chip and peripheral circuit thereof.
Delay control circuit 4 comprises the second diode D2, the second electric capacity C2.Wherein, the second diode D2 anode is connected with VCU one-chip machine port, and is connected with second electric capacity C2 one end; One end ground connection that second electric capacity C2 is not connected with the second diode D2 anode.The negative electrode of the second diode D2 is in parallel with 3 the first diode C1 negative electrodes in the first operation signal input circuit 1.
Described power line voltage Acquisition Circuit 5 comprises the second resistance R2, the 3rd resistance R3, the 3rd diode D3, the 3rd electric capacity C3 and the 4th electric capacity C4.Wherein, described second resistance R2, the 3rd resistance R3, the 3rd electric capacity C3 and the 4th electric capacity C4 one end are in parallel, and are connected with VCU micro controller system Single port; Second resistance R2 one end not in parallel is connected with 12V power supply; 3rd resistance R3, the 3rd electric capacity C3 and the 4th electric capacity C4 one end not in parallel ground connection respectively; 3rd diode C3 negative electrode is connected with 12V power supply, plus earth.
The first operation signal input circuit 1 of the present embodiment comprises many input branch roads for receiving dissimilar operation signal.Many input branch roads are respectively when access operation signal and not access operation signal, first operation signal input circuit 1, power line voltage Acquisition Circuit 5, power supply stabilization circuit 3 and delay control circuit 4 will perform corresponding control flow, realize the effective control to VCU power-on and power-off.The circuit that the present embodiment provides is integrated with polytype operation signal input branch road, under realizing the input of the operation signals such as CAN signal, key signal and charging signals, the voltage controlling power-supply system exports, thus achieves the VCU power-on and power-off function under the input of polytype operation signal.
In sum, the present invention has following technique effect:
The invention solves electronlmobil VCU power-on and power-off operation signal type single, rely on the problem of outside relay, the alerting ability of electronlmobil Functional Design can be significantly improved.
Although above to invention has been detailed description, the present invention is not limited thereto, those skilled in the art of the present technique can carry out various amendment according to principle of the present invention.Therefore, all amendments done according to the principle of the invention, all should be understood to fall into protection scope of the present invention.
Claims (10)
1. a control method for vehicle control unit of electric vehicle power-supply system, is characterized in that, comprising:
To electronlmobil at least comprise key signal, charging signals, bus signals polytype operation signal detect;
The operation signal detected being changed, obtaining the wake-up signal for waking power-supply system up;
Export described wake-up signal to described power-supply system, to start described power-supply system.
2. method according to claim 1, is characterized in that, after the described power-supply system of startup, also comprises:
Carry out periodicity to polytype operation signal of electronlmobil to detect;
If described operation signal detected in sense cycle, then generate delay control signal;
Export described delay control signal to described power-supply system, thus keep described power-supply system normally to work.
3. method according to claim 2, is characterized in that, also comprises:
If described operation signal do not detected in sense cycle, then start time meter and carry out timing;
In the timing time of described time meter, generate delay control signal, and export described power-supply system to, thus in described timing time, keep described power-supply system normally to work.
4. method according to claim 3, is characterized in that, also comprises:
In described timing time, polytype operation signal of electronlmobil is detected;
If operation signal detected not yet, then generate and be used for making power-supply system enter the sleep signal of dormant state, and export described power-supply system to, thus make described power-supply system enter dormant state, otherwise, abort timer timing.
5. the method according to claim 1-4 any one, is characterized in that, after the described power-supply system of startup, also comprises:
External input voltage is gathered, if the input voltage gathered is not in default input voltage range, then generate and be used for making power-supply system enter the sleep signal of dormant state, and export described power-supply system to, thus make described power-supply system enter dormant state.
6. a control setup for vehicle control unit of electric vehicle power-supply system, is characterized in that, comprising:
Detection module, for electronlmobil at least comprise key signal, charging signals, bus signals polytype operation signal detect;
Modular converter, for changing the operation signal detected, obtains the wake-up signal for waking power-supply system up;
Output module, for exporting described wake-up signal to described power-supply system, to start described power-supply system.
7. device according to claim 6, is characterized in that, also comprises:
Time delay module, for after the described power-supply system of startup, when described detection module detects operation signal in sense cycle, generate delay control signal, and export described delay control signal to described power-supply system, thus described power-supply system is kept normally to work.
8. device according to claim 7, is characterized in that, also comprises:
Timing module, for after the described power-supply system of startup, described detection module starts and timing when described operation signal not detected in sense cycle, make described time delay module in its timing time, generate delay control signal, and export described power-supply system to, thus in described timing time, described power-supply system is kept normally to work.
9. device according to claim 8, is characterized in that, also comprises:
Sleep block, during for operation signal not detected in described timing time yet, generating and being used for making power-supply system enter the sleep signal of dormant state, and exporting described power-supply system to, thus making described power-supply system enter dormant state.
10. the device according to claim 6-9 any one, is characterized in that, also comprises:
System protection module; for after the described power-supply system of startup; external input voltage is gathered; if the input voltage gathered is not in default input voltage range; then generate and be used for making power-supply system enter the sleep signal of dormant state; and export described power-supply system to, thus described power-supply system is made to enter dormant state.
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| CN201410242741.0A CN105128694A (en) | 2014-06-03 | 2014-06-03 | Method and apparatus for controlling entire vehicle controller power system of electric car |
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Application publication date: 20151209 |