CN104097516B

CN104097516B - Equipment and method for vehicle voltage stabilisation

Info

Publication number: CN104097516B
Application number: CN201410233888.3A
Authority: CN
Inventors: C·S·纳穆杜里; S·L·布泽; M·G·雷诺; K·J·舍马克
Original assignee: GM Global Technology Operations LLC
Current assignee: GM Global Technology Operations LLC
Priority date: 2013-04-11
Filing date: 2014-04-11
Publication date: 2016-08-17
Anticipated expiration: 2034-04-11
Also published as: CN104097516A; DE102014105040A1; DE102014105040B4

Abstract

The present invention relates to the equipment for vehicle voltage stabilisation and method.Include for realizing the method for voltage stabilization during the engine start event of vehicle: effectively the starting of instruction startup engine start event receiving self starter solenoid valve module at switchgear module connects signal.At switchgear module, in receiving the predetermined delay that effectively starting connection signal is started at, auxiliary electric energy storage device (ESD) is electrically coupled to one or more assistant load.Only after auxiliary ESD has been electrically coupled to one or more assistant load, main ESD and starter motor just electrically depart from from one or more assistant loads.In response to the predetermined state occurred when main ESD and starter motor electrically depart from from one or more assistant loads, main ESD and starter motor are electrically coupled to one or more assistant load.

Description

Equipment and method for vehicle voltage stabilisation

Cross-Reference to Related Applications

This application claims in the rights and interests of U.S. Provisional Application 61/810,943 that on April 11st, 2013 submits to, the document its It is incorporated in herein by quoting.

Technical field

It relates to stabilisation applies the voltage to load during engine crank rotation event.

Background technology

The statement of the contents of the section only provides the background information about the disclosure.Therefore, this statement is not intended as constituting Admission of prior art.

The powertrain system of vehicle can use engine automatic stop strategy, to cut off engine when the vehicle is stopped. Such as, when vehicle stops and during operator's brake pedal of vehicle at traffic lights, and engine can be automatically stopped and cut Disconnected (such as, fuel cutoff event).When needs vehicle moves, engine can start automatically with to driving wheel to provide motion Moment of torsion.Be automatically stopped and start a shortcoming of engine and be, need from energy accumulating device be supplied to starter motor with The big voltage at the assistant load of vehicle can be temporarily caused to decline in the electric energy making engine crank rotate, electrical power storage Device also supplying energy is to described assistant load.These voltage declines (commonly referred to voltage dip) can be caused in electrical system In tracing trouble, controller reset and other undesired electric exception (such as, vehicle interior internal lighting device flicker and Annex is interrupted).

It is known that utilize DC-DC boost converter to raise the battery tension of fall temporarily during automatically starting, with to Some critical loads provide burning voltage.But, DC-DC boost converter need to divide whole electrical loads of being supported and It is confined to low power load, such as, the load less than about 400 watts.Another shortcoming of dc-dc is, higher is negative Carrying power causes the acceleration of battery tension during automatically starting to deteriorate and the voltage stabilization of poor efficiency.Additionally, DC-DC liter Pressure converter use on the vehicle with higher electrical load is not calculate on cost.

Summary of the invention

Include for realizing the method for voltage stabilization during the engine start event of vehicle: in switchgear module Place receives effectively the starting of instruction startup engine start event of self starter solenoid valve module and connects signal.At switch dress Putting at module, in receiving the predetermined delay that effectively starting connection signal is started at, auxiliary electric energy stores device (ESD) Electricity Federation It is connected to one or more assistant load.Only after ESD has been electrically coupled to one or more assistant load to auxiliary, main ESD and Starter motor just electrically departs from from one or more assistant loads.In response to when main ESD and starter motor from one or The predetermined state occurred when multiple assistant loads electrically depart from, main ESD and starter motor are electrically coupled to one or more auxiliary Help load.

The present invention can also include below scheme.

1. for the method realizing voltage stabilization during the engine start event of vehicle, described method bag Include:

The instruction receiving self starter solenoid valve module at switchgear module starts having of engine start event Effect starts connects signal；

Being in described switchgear module will in receiving the predetermined delay that described effective starting connection signal is started at Auxiliary electric energy storage device (ESD) is electrically coupled to one or more assistant load；

Only at described switching device mould after described auxiliary ESD has been electrically coupled to the one or more assistant load At block, main ESD and starter motor are electrically departed from from the one or more assistant load；And

In response to when described main ESD and described starter motor electrically depart from from the one or more assistant load The predetermined state occurred, is electrically coupled to described one by described main ESD and described starter motor at described switchgear module Individual or multiple assistant loads.

2. the method as described in scheme 1, wherein, described switchgear module includes:

First switching device, described first switching device only makes described main ESD and described starter motor when disconnecting Electrically depart from from the one or more assistant load, and only Guan Bi time by described main ESD and described starter motor It is electrically coupled to the one or more assistant load；

Second switch device, described auxiliary ESD is only electrically coupled to one when Guan Bi by described second switch device Or multiple assistant load, and only when disconnecting, described auxiliary ESD is electrically departed from from the one or more assistant load； And

Controller, described controller connects signal, being automatically stopped from electro-hydraulic transmission pump module based on receiving starting Signal and disconnect described first and second switching devices from least one in the ignition signal of ignition module.

3. the method as described in scheme 1, wherein, is electrically coupled to described one by described auxiliary ESD in described predetermined delay Individual or multiple assistant loads include: described predetermined delay connects less than with in response to the effectively starting carrying out self starter solenoid valve module Messenger activates starter and controls the time delay that magnetic valve is relevant.

4. the method as described in scheme 1, also includes:

After described auxiliary ESD is electrically coupled to one or more assistant load, based on by described switchgear module The relatively morning one of the following signal received makes described auxiliary ESD auxiliary from the one or more at described switchgear module Departing from helping load electrical, described signal includes:

From the non-effective ignition signal of ignition module, described non-effective ignition signal indicates car key and closes shape Condition；And

Effectively it is automatically stopped signal from electro-hydraulic transmission pump module, described is effectively automatically stopped signal designation engine It is automatically stopped the startup of event.

5. the method as described in scheme 1, wherein, is only electrically coupled to the one or more auxiliary at described auxiliary ESD After load, described main ESD and described starter motor are electrically departed from from the one or more assistant load and include:

Connecting in the scheduled time slot that signal is started at from receiving for the first time described non-effective starting, by described main ESD and Described starter motor electrically departs from from the one or more assistant load.

6. the method as described in scheme 1, wherein, is only electrically coupled to the one or more auxiliary at described auxiliary ESD After load, described main ESD and described starter motor are electrically departed from from the one or more assistant load and include:

The monitoring voltage being declined to become less than described auxiliary ESD when the monitoring crank rotation voltage at described main ESD reaches pre- When determining voltage, described main ESD and described starter motor are electrically departed from from the one or more assistant load.

7. the method as described in scheme 1, wherein, the monitoring voltage in response to described main ESD exceedes the one or more The monitoring voltage of assistant load reaches scheduled volume, described predetermined state occurs.

8. the method as described in scheme 1, wherein, connects signal for the first time by described switching device in response to from described starting Module starts at, when receiving, scheduled time slot of having passed, and described predetermined state occurs.

9. the method as described in scheme 1, wherein, in response to described switchgear module from described starter solenoid valve module Receive and indicate the non-effective starting connection signal that engine start event completes, described predetermined state occurs.

10. the method as described in scheme 1, also includes:

Voltage and the electricity of the one or more assistant load of described main ESD is monitored at described switchgear module Pressure；

The effective ignition signal indicating car key connection situation is received at described switchgear module；And

When the voltage of described main ESD reaches scheduled volume less than the voltage of the one or more assistant load and only in institute State after assisting ESD to be electrically coupled to the one or more assistant load, by described master at described switchgear module ESD and described starter motor electrically depart from from the one or more assistant load.

11. methods as described in scheme 1, wherein, engine start event include key ON engine start event and Any one in engine auto-start event.

12. 1 kinds of equipment being used for stabilizing voltage during the engine start event of vehicle, described equipment includes:

First switching device, described first switching device only Guan Bi time by starter motor and main electrical energy storage device (ESD) one or more assistant loads of vehicle it are electrically coupled to；

Second switch device, auxiliary ESD is only electrically coupled to one or many by described second switch device when Guan Bi Individual assistant load；

Controller, described controller is configured to perform following steps, including:

The effective ignition signal indicating car key connection situation is received from ignition module；

Receive from starter solenoid valve module and indicate the effectively starting connection signal starting engine start event；

Described second switch device is being closed in receiving the predetermined delay that described effective starting connection signal is started at, with Described auxiliary ESD is electrically coupled to the one or more assistant load；And

After closing described second switch device, disconnect described first switching device with by described starter motor and institute State main ESD electrically to depart from from the one or more assistant load.

13. equipment as described in scheme 12, wherein, controller is also configured to perform following step, including:

In response to the one or more predetermined states occurred when disconnecting described first switching device, close described first and open Close device so that described main ESD and described starter motor are electrically coupled to the one or more assistant load.

14. equipment as described in scheme 13, wherein, the one or more predetermined state includes:

The monitoring voltage of described main ESD exceedes the monitoring voltage of the one or more assistant load and reaches scheduled volume；

The second scheduled time slot of having passed is started at from described starting when connection signal is received by described controller for the first time；And

Receive indicate that engine start event completes non-from described starter solenoid valve module by described controller Effectively start and connect signal.

15. equipment as described in scheme 12, wherein, described controller is also configured to perform following step, including:

Close in response to receiving the key indicating vehicle from described ignition module when closing described second switch device Close the non-effective ignition signal of situation, disconnect described second switch device with by auxiliary from the one or more for described auxiliary ESD Depart from helping load electrical.

16. equipment as described in scheme 12, wherein, described controller is also configured to perform following step, including:

Startup is indicated from what electro-hydraulic transmission pump module provided in response to receiving when closing described second switch device Engine auto stop event be effectively automatically stopped signal, disconnect second switch device with by described auxiliary ESD from described one Individual or multiple assistant loads electrically depart from.

17. equipment as described in scheme 16, wherein, when being configured to provide the electricity of pressurized hydraulic fluid to the speed changer of vehicle When dynamic motor driving pump is switched in the case of described tail-off, described electro-hydraulic transmission pump module provides effectively stops automatically Stop signal.

18. equipment as described in scheme 12, wherein, described controller is also configured to perform following step, including:

Receive when disconnecting described second switch device and indicate the non-effective starting connection that engine start event completes Signal；

Only connecting after signal starts at scheduled time slot of having passed from receiving described non-effective starting, disconnecting described Second switch device.

19. equipment as described in scheme 12, wherein, disconnect described first switching device with by described starter motor and institute State main ESD electrically to depart from from the one or more assistant load and include: when the monitoring crank at described main ESD rotates electricity Drops becomes when reaching scheduled volume less than the monitoring voltage of described auxiliary ESD, is connecing from being received effectively starting by described controller Described first switching device is disconnected in the scheduled time slot that messenger is started at.

20. equipment as described in scheme 12, wherein, described main ESD to described starter motor provide electric energy, for Described engine crank is made to rotate during described engine start event.

Accompanying drawing explanation

One or more embodiment now will be described in reference to the drawings by way of example, in the accompanying drawings:

Fig. 1 show according to the disclosure at automatic engine start and be automatically stopped during event for voltage stabilization Exemplary battery isolator controller；

Fig. 2 show according to the corresponding exemplary battery of the battery isolator controller with Fig. 1 of the disclosure every From device circuit；

Fig. 3 shows that the battery to Fig. 1 according to the disclosure distributes the input of the switchgear module 150 of module 110 And output signal；

Fig. 4 shows experiencing multiple automatic startings and being automatically stopped the switching device mould of Fig. 3 of event according to the disclosure The disconnection of the first and second switching devices of block 150 and the first non-limiting logic of Guan Bi response；

Fig. 5 shows experiencing multiple automatic startings and being automatically stopped the switching device mould of Fig. 3 of event according to the disclosure The disconnection of the first and second switching devices of block 150 and the second non-limiting logic of Guan Bi response；

Fig. 6 shows the illustrative diagram of the switchgear module 150 of the Fig. 3 according to the disclosure, described switching device Module includes grid bias power supply circuit 601, switch control logic circuitry 602 and drive circuit 603；

Fig. 7 shows the another exemplary schematic diagram of the switchgear module 150 of the Fig. 3 according to the disclosure, described switch Apparatus module includes bias control circuit 701, switch control logic circuitry 702 and drive circuit 703；

Fig. 8 shows the another exemplary schematic diagram of the switchgear module 150 of the Fig. 3 according to the disclosure, described switch Apparatus module includes that bias control circuit the 801, first switching device charge pump/drive circuit 802, second switch device charge Pump/drive circuit 803 and controller 804；

Fig. 9 shows the engine crank at the exemplary battery isolator circuit 200 utilizing Fig. 2 according to the disclosure Crank during rotation event rotates voltage 504, load voltage 504 and the exemplary patterns 500 of electric current 506；And

Figure 10 shows the engine crank at the exemplary battery isolator circuit not utilizing Fig. 2 according to the disclosure Crank during rotation event rotates voltage 102, load voltage 104 and the exemplary patterns 100 of electric current 106.

Detailed description of the invention

Description, wherein accompanying drawing is only used for illustrating the purpose of certain exemplary embodiments, and is not limited to institute Stating the purpose of embodiment, Fig. 1 schematically shows battery isolator controller (BIC) 101, and it is used for starting at vehicle Voltage stabilization during machine start event.It will be appreciated that BIC101 is positioned at vehicle, described vehicle the most also include engine and Speed changer.Vehicle may also include power pump, for the hydraulic fluid providing pressurization when it is shut off to speed changer.Start Machine start event can correspond to any one in engine auto-start event and key ON engine start event.Such as this Literary composition is used, and term " engine auto-start event " refers to: temporarily ceased at engine under the conditions of given travel And not started described engine by after electronic engine control module (ECM) supply fuel, described given travel condition is such as It is when vehicle stops at stopping light and brake pedal is operated.When needs vehicle moves, engine can be started automatic Start event.As it is used herein, term " key ON engine start event " refers to: during key-off event Engine starts described engine after having stopped and being not supplied with fuel for a long time for the first time.The disclosure will relate to and start The engine start event that the automatic start event of machine is corresponding；However, it will be understood that the embodiments herein can equally should With to the engine start event corresponding with key ON engine start event.Although employing term " battery ", but It will be appreciated that BIC101 is applicable to any kind of energy storing device.BIC101 includes battery distribution module (BDM) 110, master Electrical energy storage device (ESD) 14, auxiliary ESD20, ignition module 11, starter motor 12, generator 18, electro-hydraulic transmission pump module 42, starter solenoid valve module 40 and starter magnetic valve 39.Although ignition module 11, electro-hydraulic transmission pump module 42 and starter Solenoid valve module 40 is shown respectively standalone module in the illustrated embodiment, it is to be understood that module 11,42,40 can Partially or completely it is integrated into engine control module 5.BDM110 includes auxiliary fuse terminal 130, main fuse terminal 140, switchgear module 150 and include the load blocks 170 of multiple fuse 172.Load blocks 170 manage respectively from Auxiliary of advocating peace ESD14, the electrical power distribution of one or more assistant loads 16 of 20 to vehicle.

The switchgear module 150 of BDM110 includes controller the 10, first switching device 22 and second switch device 24.The The source electrode of one switching device 22 is electrically coupled to the plus end 17 of main ESD14 via main fuse terminal 140.Main fuse terminal Including three fuses, wherein the first fuse 140-1 is electrically coupled to generator the 18, second fuse 140-2 and is electrically coupled to master Integrated storage battery sensor (1BS) 15 on ESD14, and the 3rd fuse 140-3 is electrically coupled to starter motor 12.First The drain electrode of switching device 22 is electrically coupled to the plus end 171 of load blocks 170.When the first switching device 22 closes, main ESD14 is electrically coupled to the load blocks 170 with low-down impedance (such as, less than 1 milliohm).Second switch device 24 Source electrode is electrically coupled to the plus end 171 of load blocks 170.The drain electrode of second switch device 24 is via auxiliary fuse terminal 130 are electrically coupled to assist the plus end 21 of ESD20.Auxiliary fuse terminal 130 includes the first fuse 131, and it electrically connects To assisting ESD20.When second switch device 24 closes, auxiliary ESD20 is electrically coupled to load blocks 170.

Switching device 22 and 24 can be mounted in the solid state power device on total line, and described total line is at carrying electric current Time for distribution and the heat that produced by switch of dissipating.The controller 10 (such as logic) of switchgear module 150 can be integrated On PC plate, described PC plate next-door neighbour's switching device 22 and 24 is attached so that wiring minimizes.As it is used herein, term " controller " refers to a kind of processing means.Therefore, term " controller " and " processing means " will be used interchangeably herein.

Control module, module, control device, controller, control unit, processor refer to similar term: one or Central authorities' process of multiple special ICs (ASIC), electronic circuit, the one or more software of execution or firmware program or routine Unit (preferably microprocessor) and relational storage and holder (read-only, arbitrary access read-only, able to programme, hard drive Device etc.), combinational logic circuit, input/output circuitry and equipment, suitable Signal Regulation and buffer circuit and provide described Any one in other parts of function or each combination.Software, firmware, program, instruction, routine, code, algorithm are with similar Term means to include any instruction set of calibration value and inquiry table.Control module has one group of control routine, described control example Journey is performed to provide desired function.Described routine is such as performed by CPU and operable to monitor self-inductance measurement Device and the input of other network control module and execution control with diagnostics routines thus control the operation of actuator.Continuing During the engine carried out and vehicle operating, routine can be with aturegularaintervals the most every 0.100,1.0,3.125,6.25,12.5,25 It is performed with 100 milliseconds.Alternatively, routine may be in response to event generation and is performed.

Each ESD14 and 20 can include low pressure (such as 12 volts) battery, and it has the respective negative terminal of ground connection, wherein In nonrestrictive exemplary embodiment, main ESD14 is configured to transmit at least 70 ampere-hours, and assists ESD20 to be configured to pass Defeated about 10 ampere-hours.During key-off event in the period extended, main ESD14 can provide and rise for multiple engines The dynamic electric energy with Alternative load.Additionally, in the case of the output exceeding generator 18, main ESD14 can carry to peak load For electric energy.Main ESD14 provides electric energy to starter motor 12 during engine starts, so that engine crank rotates.Main ESD14 provides electric energy to load blocks during normal extraly.As will become apparent from, starting Machine crank rotates event (such as automatic engine start) period, main ESD14 and starter motor 12 via disconnecting the first switch Device 22 and disconnect from load blocks 170/depart from.Until second switch device 24 Guan Bi just the first switching device 22 disconnects.? Before making the engine auto-start event that engine crank rotates and period, auxiliary ESD20 is via Guan Bi second switch Device 24 and electrically connect/be connected to load blocks 170.It is required that by means of keeping second after automatic engine start Switching device 24 closes thirty years of age and is auxiliary ESD20 charging, and will assist ESD20 by means of disconnecting second switch device 24 Disconnect from load blocks 170 and keep described auxiliary ESD20 to be in full charge of situation.Auxiliary ESD20 can be at engine In scheduled time slot, provide electric energy to one or more auxiliary vehicle load 16 during start event, and voltage is maintained at pre- Determine in level.

The first and second respective disconnections of switching device 22,24 and Guan Bi are based respectively on and provide by means of signal connector 23 To the ignition signal 13 of the controller 10 of switchgear module 150, start and connect signal 41 and be automatically stopped signal 43 and controlled System.The controller 10 (such as logic) of switchgear module 150 also receives ground signalling 19.Ignition signal 13 is by ignition module 11 There is provided and indicate vehicle-state to be in connecting (such as key ON) situation and be in disconnecting (such as key-off) shape Condition.When there is car key and connecting situation, ignition signal 13 is effective.

When starting connection signal 41 and being effective, indicating engine start event, it includes engine auto-start event Or any one in key ON engine start event.Start connection signal 41 operable to close and auxiliary when effective The second switch device 24 of ESD20 series connection, and be only declined to become at the voltage of main ESD14 after second switch device 24 closes The first switching device 22 connected with main ESD14 is allowed to disconnect less than in the case of auxiliary ESD20.Nonrestrictive exemplary In embodiment, the first switching device 22 disconnects in starting at 5 milliseconds when having closed from second switch device 24.It will be appreciated that It is that second switch device 24 is from effectively starting Guan Bi in connection signal is activated the predetermined delay started at.Predetermined delay can quilt It is referred to as maximum scheduled time slot.In a non-limiting example, predetermined delay is 2.0 milliseconds.Start and connect signal 41 always self-starting The status signal of device solenoid valve module 40 is determined.In one embodiment, when the status signal of starter solenoid valve module 40 When being to turn on, it is effective for starting connection signal 41；When the status signal of starter solenoid valve module 40 is off, starting connects Messenger 41 is not effective.When starting connection signal 41 is not effective (such as, non-effective starting connects signal 41), Engine start event completes.It will be appreciated that when the status signal of starter solenoid valve module 40 is off, starter horse Reach the magnetic valve 39 of 12 to be deactivated, because being not required to start engine.Similarly, when the shape of starter solenoid valve module 40 When state signal is to turn on, the magnetic valve 39 of starter motor 12 is activated, this is because need to start engine.Therefore, use The status signal carrying out self starter solenoid valve module 40 allows to determine that signal 41 is connected in starting, without from engine control module Obtain the extra of the automatic start event of instruction engine.Those skilled in the art recognize, if engine controls mould Block needs to send the signal indicating automatic start event to the controller 10 (such as logic) of switchgear module 150, then will produce Raw extra-pay.

Determine from the status signal from electro-hydraulic transmission pump module 42 (hereinafter referred to as " pump module 42 ") and be automatically stopped Signal 43.It will be appreciated that when the status signal of pump module 42 is to turn on, be configured to provide pressurized fluid to the speed changer of vehicle The electrical motor driven pump of body fluid will be switched on when tail-off.Therefore, it is to turn on when the status signal of pump module 42 And time effective, it is also effective for being automatically stopped signal 43, thus shows being automatically stopped of engine.It is automatically stopped signal 43 to exist The operable second switch device 24 to disconnect with assist ESD20 to connect time effectively.Similarly, when electro-hydraulic transmission pump module 42 When status signal is off, it is not effective for being automatically stopped signal 43.It is being not equipped with electro-hydraulic transmission pump and thus not there is electricity Drive in the vehicle of pump module, can directly obtain from engine control module and be automatically stopped signal 43.

Fig. 2 shows the exemplary battery corresponding according to the battery isolator controller 101 with Fig. 1 of the disclosure Isolator circuit 200.Battery isolator circuit (IC) 200 includes that the controller 10, first of switchgear module 150 switchs dress Putting 22 and second switch device 24 and electrical power bus, described electrical power bus includes starter motor 12, main ESD14, auxiliary Help load 16, generator 18 and auxiliary ESD20.In the illustrated embodiment, main ESD14 is referred to alternatively as crank and rotates battery, And assist ESD20 to be referred to alternatively as the 2nd ESD.Assistant load 16 can not include one or more loads of vehicle, such as but not It is limited to, the illumination of compressor of air conditioner, vehicle interior, automatic seat operation and entertainment systems.Starter motor 12 includes that magnetic valve leaves Closing 12-1, it is in engine start event (it is effective for such as starting connection signal 41) period Guan Bi.Need each of power Assistant load 16 can include respective switch 16-1 so that is off respectively still based on the first and second switching devices 22,24 Guan Bi, power can be provided from the auxiliary ESD14 that advocates peace, any one 20 to one or more assistant loads 16 respectively.When Engine engagement and in the normal speed ranges of engine run time, need the assistant load of electrical power generally from generator It is supplied with main ESD14 with electrical power.

Fig. 3 shows that the battery to Fig. 1 according to the disclosure distributes the input of the switchgear module 150 of module 110 And output signal.Controller 10 (such as logic) receives the igniting speech number 13 from ignition module 11, carrys out self starter magnetic valve Starting of module 40 is connected signal 41, is automatically stopped signal 43 and the ground connection from earthing module 15 from pump module 42 Signal 19.Controller 10 also via the signal 145 provided from main ESD14 to monitor main ESD voltage, via from one or more auxiliary Help the signal 165 of load 16 offer to monitor assistant load voltage and to monitor via the signal 205 provided from auxiliary ESD20 Auxiliary ESD voltage.It will be appreciated that each can wrap in main ESD14, one or more assistant load 16 and auxiliary ESD20 Include the integrated sensor being configured to measure relevant voltage.It will be further appreciated that, load blocks 170 can include integrated sensing Device, its relevant voltage being configured to measure one or more assistant load 16.Based on ignition signal 13, start and connect signal 41 and It is automatically stopped at least one in signal 43, controls disconnection and the Guan Bi of the first and second switching devices 22,24 respectively.First opens Close device 22 operable the contact of main ESD14 and starter motor 12 is electrically coupled to one or more auxiliary bears when Guan Bi Carry the plus end of 16.Specifically, the contact of main ESD14 and starter motor 12 is electrically connected by the first switching device 22 when Guan Bi To the plus end 171 of load blocks 170, wherein, load blocks 170 management divides to the electrical power of one or more assistant loads 16 Join.Upon opening, the first switching device 22 is operable such that winner ESD14 (and starter motor contact) is from one or more Assistant load 16 disconnects and departs from.

First switching device 22 is operable to reach predetermined when the crank at the plus end of main ESD14 rotates voltage decline Amount and start during monitoring voltage less than auxiliary ESD20 and connect the pre-timing of short first after signal 41 becomes for the first time effectively Disconnect in section (such as, 10 milliseconds).Controller 10 only second switch device 24 Guan Bi just allows to break the first switching device 22 Open, wherein, the maximum scheduled time slot (example after starting connection signal 41 and becoming effective and received by controller 11 for the first time Such as, the predetermined delay of 2 milliseconds) in must close second switch device 24.Therefore, connect signal 41 and become for the first time to have starting Effect and second switch device 24 be closed after the first scheduled time slot in, the first switching device 22 disconnects.Afterwards, first Switching device 22 remains open, until having there is one or more predetermined state.In one embodiment, in response to master The voltage of ESD14 exceedes the voltage of one or more assistant load 16 and reaches scheduled volume, predetermined state and the first switch dress occurs Put 22 and switch to Guan Bi.In another embodiment, in response to from starting at and passed when starting to connect when signal 41 becomes effective Second scheduled time slot, occurs that predetermined state and the first switching device 22 switch to Guan Bi.In this embodiment, second makes a reservation for Period must pass, even if the voltage of main ESD14 alreadys more than one or more auxiliary and bears before passage the second scheduled time slot It is also such that the voltage of load 16 reaches scheduled volume.In still another embodiment, in response to starting, connection signal 41 is no longer valid (such as Non-effective), occur that predetermined state and the first switching device 22 switch to Guan Bi.Non-effective starting connection signal 41 indicates to be sent out Completing of engine start event.The embodiments herein relates to so that the first switching device 22 itself is for the electric current more than 5 amperes Draw and be biased and keep not biasing for the Current draw less than 100 milliamperes.Second switch device 24 can when Guan Bi Operate auxiliary ESD20 is electrically coupled to plus end (such as, the anode of load blocks 170 of one or more assistant load 16 Son 171).

As it has been described above, the predetermined delay (also referred to as " maximum scheduled time slot ") after starting connection signal 41 and becoming effectively In, second switch device 24 must close.It will be appreciated that connecting signal 41 in response to starting becomes effective, exists and activates Starter controls the relevant time delay of helix tube 39, and wherein, starter controls the Guan Bi starter motor 12 of magnetic valve 39 The time delay of contact exceedes predetermined delay.Therefore, second switch device 24 must close in predetermined delay, with at starter Control auxiliary ESD20 to be electrically coupled to before magnetic valve 39 is activated one or more assistant load 16.In non-limiting example In, predetermined delay is 2 milliseconds.Upon opening, second switch device 24 is operable so that auxiliary ESD20 is from one or more auxiliary Load 16 is helped to disconnect and depart from.It is that effective, ignition signal 13 is non-effective or connects from starting being automatically stopped signal 43 Signal 41 has become the non-effective either case passed in the predetermined non-effective period of starting at when occurring, and second switch fills Put 24 to switch to disconnect from Guan Bi.It will be appreciated that non-effective ignition signal 13 indicates key-off situation, Qi Zhongche State is to close and non-effective starting is connected signal and indicated the startup of engine auto stop event.

Fig. 4 shows experiencing multiple automatic starting respectively and being automatically stopped first He of Fig. 3 of event according to the disclosure The disconnection of second switch device 22,24 and the first non-limiting logic of closing time response.Letter is connected in ignition signal 13, starting Numbers 41, be automatically stopped in signal the 43, first switching device signal 22 and second switch device signal 24 each be double level letters Number, it is operable under any one in low level and high level.For ignition signal 13, low level indicates ignition signal 13 Non-effective (this closes situation corresponding to car key), and high level to indicate ignition signal 13 be that effective (this is right Situation should be connected) in car key.For start connect signal 41, high level indicate starting connect signal 41 be non-effectively (this corresponding to there is no engine auto-start event), and low level indicate starting to connect signal 41 be that effective (this is right Should be in engine auto-start event).For being automatically stopped signal 43, high level indicates and is automatically stopped signal 43 is non-effective (this corresponding to be not automatically stopped event), and low level indicates, and to be automatically stopped signal 43 be that effective (this corresponds to Engine be automatically stopped event).For switch 22 and 24, it is Guan Bi that high level indicates switch 22 and 24, and low electricity Put down and indicate what switch 22 and 24 was off.Vertically dotted line 1-9 indicates multiple time-event.

When ignition signal 13 is non-effective and vehicle is in key-off situation, the first switching device 22 keeps closing Close, so that winner ESD14 is electrically connected to one or more assistant load 16.First switching device 22 remains closed, until by having The engine crank starting connection signal 41 instruction of effect rotates event and is received by controller 10.Especially, the first switch dress Put 22 to be in start at vertical dotted line 1 and connect signal 41 and become for the first time effectively that (such as, start engine starts thing automatically Part) after first scheduled time slot disconnect.It will be appreciated that the automatic start event of startup indicates startup engine crank and rotates Event.Additionally, the first switching device 22 just disconnects in scheduled time slot after second switch device 24 is closed.Vertically Before dotted line 1, when ignition signal 13 is effective and starting connection signal 41 is effective, second switch device 24 closes Close.Especially, in starting the predetermined delay connected after signal 13 becomes effectively, second switch device 24 must close.Non- In limitative examples, predetermined delay is 2 milliseconds.Such as, start connection signal 41 and become effective at vertical dotted line 4, and the Two switching devices 24 close at vertical dotted line 5, and wherein, predetermined delay was represented by the time period between vertical dotted line 4 and 5.This Outward, after vertical dotted line 5 after second switch device 24 is closed, the first switching device 22 disconnects.Similarly, start Connect signal 41 at vertical dotted line 7, to become effective and second switch device 24 close at vertical dotted line 8, wherein, make a reservation for Postpone to be represented by the time period between vertical dotted line 7 and 8.Additionally, closed at second switch device 24 after vertical dotted line 8 After closing (its Guan Bi of contact being not later than starter motor 12), the first switching device 22 disconnects.

Further embodiment may include that when ignition signal 13 is that the voltage of effective and main ESD14 is less than one Or the voltage of multiple assistant load 16 is when reaching the second predetermined voltage amount, disconnect the first switching device 22.In a non-limiting example, Predetermined voltage amount is 50mV.The predetermined voltage amount relevant to disconnecting the first switching device 22 can include with about for Guan Bi the The value that the value of the predetermined voltage amount of the predetermined state of one switching device 22 is different.Before disconnecting the first switching device 22, second Switching device 24 must be closed by controller 10.As it was previously stated, the first switching device 22 remains open, unless meet one or Multiple predetermined states and engine are started.Illustrate in logic at Fig. 4, when ignition signal 13 is effective and main When the voltage of ESD14 reaches predetermined voltage amount less than the voltage of one or more assistant loads, the first switching device 22 is the most empty Disconnect at line 1, and be in described first switch after engine starts and meets at least one predetermined state at vertical dotted line 2 Device closes.

The embodiment of the logic of Fig. 4 further to: be effective or ignition signal 13 right and wrong when being automatically stopped signal 43 Time effective, disconnect second switch device 24.Such as, at every vertical dotted line 3 and 6, become to have when being automatically stopped signal 43 During effect, second switch device 24 disconnects.Similarly, when ignition signal 13 is no longer valid at vertical dotted line 9, second switch fills Put 24 disconnections.

Fig. 5 shows experiencing multiple automatic starting respectively and being automatically stopped first He of Fig. 3 of event according to the disclosure The disconnection of second switch device 22,24 and the second non-limiting logic of closing time response.Letter is connected in ignition signal 13, starting Numbers 41, be automatically stopped in signal the 43, first switching device signal 22 and second switch device signal 24 each be double level letters Number, it is operable under any one in low level and high level.About ignition signal 13, low level indicates ignition signal 13 Non-effective (this closes situation corresponding to car key), and high level to indicate ignition signal 13 be that effective (this is right Situation should be connected) in car key.Connecting signal 41 about starting, high level indicates starting and connects signal 41 is effective (this correspond to engine auto-start event), and low level indicate starting to connect signal 41 be that non-effective (this is corresponding In there is no engine auto-start event).About being automatically stopped signal 43, low level indicates and is automatically stopped signal 43 is non-to have (this corresponding to be not automatically stopped event) of effect, and high level indicates, and to be automatically stopped signal 43 be that effective (this is corresponding It is automatically stopped event) in engine.About switch 22 and 24, it is Guan Bi and low electricity that high level indicates switch 22 and 24 Put down and indicate what switch 22 and 24 was off.Vertically dotted line 1-8 indicates multiple time-event.

In the non-limiting logic of Fig. 5, when ignition signal 13 is non-effective or from non-effective conversion to time effective, First switching device 22 normally remains closed.Becoming effective in response to starting connection signal 41, second switch device 24 is just Closed in predetermined delay (such as, 2 milliseconds) before vertical dotted line 1.When the crank applied to the plus end of main ESD14 turns When dynamic voltage decline reaches predetermined voltage amount thus is less than the voltage of one or more assistant loads 16, the first switching device 22 can be grasped Make to disconnect in starting the first short scheduled time slot (such as, 10 milliseconds) connected after signal 41 becomes effectively for the first time. It will be appreciated that the controller 10 of Fig. 3 is operable after being closed at second switch device 24, just allow the first switch dress Put 22 disconnections.In the illustrated embodiment, the first switching device 22 vertical dotted line 4 be in starting connect signal 41 become effective And the first short scheduled time slot after second switch device 22 is closed disconnects.Similarly, the first switching device 22 exists Vertically dotted line 4 is in starting and connects signal 41 and become effective and second switch device 22 at vertical dotted line 3 at vertical dotted line 4 The first short scheduled time slot after the most closing disconnects.Similarly, the first switching device 22 is in starting at vertical dotted line 6 Connect signal 41 to become short first after effective and second switch device 24 was closed before vertical dotted line 6 and make a reservation for Period disconnects.

First switching device 22 remains open, until meeting one or more predetermined state.In the illustrated embodiment, when When meeting one or more predetermined state, the first switching device 22 switches to Guan Bi at vertical dotted line 2.An embodiment In, when the voltage that the voltage of main ESD14 exceedes one or more assistant load 16 reaches scheduled volume, the first switching device is vertically Guan Bi is switched at dotted line 2.In another embodiment, from starting the scheduled time slot stream that effective starting connection signal 41 is started at After dying, the first switching device 22 switches to Guan Bi at vertical dotted line 2.In this embodiment, even if the voltage of main ESD14 surpasses The voltage crossing one or more assistant load reaches scheduled volume, and the first switching device 22 only second scheduled time slot has been passed and just cut It is changed to Guan Bi.In yet another embodiment, the first switching device 22 can remain open, until starting connection signal 41 to become non- Effectively.The non-effective connection signal 41 that starts indicates completing of engine start event.

The embodiment of the logic of Fig. 5 further to: second switch device 24 start connect signal 41 become effective it After predetermined delay in Guan Bi.Such as, start connection signal 41 and become effective at vertical dotted line 3, and second switch device 24 just before vertical dotted line 4 close, wherein, vertical dotted line 3 and just before vertical dotted line 4 between there is predetermined delay. In non-limiting example, vertical dotted line 3 and just before vertical dotted line 4 between predetermined delay equal to 2 milliseconds.This Outward, become non-effective based on ignition signal 13, be automatically stopped signal 43 and become effectively and connect signal 13 become from starting Non-effective must start at the one earlier having passed in scheduled time slot, second switch device 24 disconnects.Signal is connected starting 41 become non-effective reach scheduled time slot after allow second switch device 24 remain closed and can allow: turn at engine crank Dynamic period, after due to supply of electrical energy to one or more assistant loads 16, part consumes, auxiliary ESD20 is supplied to from now The engine of fuel and operation comes fully charged.But, watch in the distance until it vanishes out second switch device 24 in the period that is electrically charged so that auxiliary ESD20 is maintained at full charge of situation, thus electric energy can be supplied to one during engine auto-start event subsequently Individual or multiple assistant loads 16.Illustrating in embodiment at Fig. 5, second switch device 24 just closed before vertical dotted line 4, Therefore, close in starting the predetermined delay connected after signal becomes effectively at vertical dotted line 3.Second switch device 24 remain closed, until being automatically stopped signal 43 to become effective at vertical dotted line 5.Additionally, second switch device 24 just exists Vertically close in starting the predetermined delay connected after signal 41 becomes effectively before dotted line 6.Second switch device 24 from Remain closed in the scheduled time slot started at when starting connection signal 41 and becoming non-effective at vertical dotted line 7, until vertically Just disconnect at dotted line 8, wherein, be positioned at vertical dotted line 7 from the scheduled time slot started at when starting connection signal 41 and becoming non-effective And between 8.

Fig. 6 shows the non-restrictive illustrative schematic diagram of the switchgear module 150 of the Fig. 3 according to the disclosure, described Switchgear module includes grid bias power supply circuit 601, switch control logic circuitry 602 and drive circuit 603.Circuit 601- 603 include diode, Zener diode, resistor, amplifier, capacitor, NAND gate, ground wire and instrument widely, and they are every The individual corresponding schematic symbols being used for common electronics by it describes.Grid bias power supply circuit 601 is from corresponding to assistant load 16 Terminal 616 draw power.Grid bias power supply circuit 601 includes input filter, overvoltage, reverse-voltage protection, and via Terminal 607 supplies predetermined modulation voltage (such as, 10 to 12V) to switch control logic and drive circuit 602,603 respectively.Open Close control logic circuit 602 to regulate and process from the firing tip corresponding with the ignition module 11 in ignition signal electronic circuit 610 The input ignition signal 13 of son 693, from to start the starter solenoid valve module 40 connected in signal subspace circuit 620 corresponding Starter terminal 694 input start connect signal 41 and from the pump module 42 being automatically stopped in signal subspace circuit 630 The input of corresponding pump terminal 695 is automatically stopped signal 43, thus produces the necessary signals 611,621 to drive circuit 603 With 631, to control switch 22 and 24.Ground terminal 696 is illustrated further, and it includes ground signalling 19.Electronic circuit 620 He 630 each include the terminal 614 indicating the voltage corresponding to main ESD14.

Drive circuit 603 includes that charge pump circuit 660, described charge pump circuit are configured to keep the first switching device 22 Guan Bi.As it was previously stated, the voltage that the voltage working as main ESD14 gets lower than one or more assistant load reaches scheduled volume and starts When connection signal 41 is effective, after Guan Bi second switch device 24, the first switching device 22 can be disconnected.In the enforcement illustrated In example, drive control signal 621 is connected signal 41 with 631 and is automatically stopped signal 43 and is acquired from starting.Signal 621 makes It is declined to become less than right from the voltage at the terminal 614 corresponding to main ESD14 in the case of starting connection signal 41 is effective The first switch 22 should can be disconnected in the first period of starting at when reaching scheduled volume of voltage at the terminal 616 of assistant load 16. Signal 631 makes connecting signal 41 and become the effective moment and start and predetermined prolonging before disconnecting the first switch 22 from starting Second switch 24 can be closed in late.Drive circuit 603 includes the first switching device charge pump/comparator circuit 650, its structure Cause the voltage at terminal 614 to be declined to become the voltage at less than terminal 616 to reach the second predetermined voltage amount (this is corresponding to main The voltage of ESD14 reaches predetermined voltage amount less than the voltage of one or more assistant loads 16) time by means of the first switching device 22 Discharge gate disconnect the first switching device 22.Drive circuit 603 also includes second switch device charge pump/comparator electricity Road 640, it is configured to disconnect via the charged/discharged grid of second switch device 24 and close second switch device 24.

First switching device 22 includes the single or multiple mos field effect transistor being connected in parallel (MOSFET), each have respective gates resistance.The source electrode of each MOSFET of the first switching device 22 is via terminal 614 Electricity Federation It is connected to main ESD14, and the drain electrode of each MOSFET of the first switching device 22 is electrically coupled to one or more via terminal 616 Assistant load 16.First switching device 22 can be based on the voltage received from the first switching device charge pump/comparator circuit 650 Changing between closure state disconnecting, described first switching device charge pump/comparator circuit is configured to the shape formerly described The grid of the first switching device 22 is disconnected under condition.Second switch device 24 includes the single or multiple field effect transistor being connected in parallel Pipe (MOSFET), each have respective gates resistance.The source electrode of each MOSFET of second switch device 24 is via terminal 716 electricity It is attached to one or more assistant load 16, and the drain electrode of each MOSFET of second switch device 24 is via terminal 620 electricity It is attached to assist ESD20.Second switch device 24 can be based on from second switch device charge pump/comparator circuit 640 reception Boost in voltage and change between closure state disconnecting, so that with connecting and be automatically stopped the control of signal acquisition from starting Signal 631 disconnects and closes second switch device 24, as the most previously described.At this In embodiment, igniting (rotation of operation/crank) signal can be cut to second switch device charge pump/comparator electricity when it is closed The power on road 640, to turn off second switch device 24.

Fig. 7 shows the non-restrictive illustrative schematic diagram of the switchgear module 150 of the Fig. 3 according to the disclosure, described Switchgear module includes bias control circuit 701, switch control logic circuitry 702 and drive circuit 703.Circuit 701- 703 include diode, Zener diode, resistor, amplifier, capacitor, NAND gate, ground wire and instrument widely, and they are every The individual corresponding schematic symbols being used for common electronics by it describes.Grid bias power supply circuit 701 is from corresponding to assistant load 16 Terminal 716 draw power.Power circuit 701 includes input filter, overvoltage, reverse-voltage protection, and when igniting letter Numbers 13 supply predetermined to switch control logic and drive circuit 702,703 via terminal 707 when being to turn on and be effective respectively Regulation voltage (such as 10 to 12V).Switch control logic circuitry 702 regulate and process from the point in ignition sub-circuit 710 The input ignition signal 13 of the terminal 793 of fire module 11 correspondence, from start the starter magnetic valve connected in electronic circuit 719 The terminal 794 of module 40 correspondence input start connect signal 41 and from the pump module being automatically stopped in electronic circuit 729 The input of the terminal 795 of 42 correspondences is automatically stopped signal 43, thus produces necessary signals 709,720 and 730.When igniting is to close Or time non-effective, signal 709 turns off the second switch device charge pump/comparator circuit 740 to second switch device 24 Power.When start connect signal and be automatically stopped signal become effective or non-effective time, signal 720 and 730 marked event, root According to non-restrictive illustrative the second logic with reference to Fig. 5 in above-described each logic, described event is provided to timing electricity Road 780, to produce the control signal 750 to second switch device charge pump/comparator circuit 740.Switch control logic circuitry 702 also include ground terminal 796 and ground signalling 19.

Drive circuit 703 also includes the first switching device charge pump/comparator circuit 760, and it is configured to keep first Switching device 22 is normally closed.As it was previously stated, represent by terminal 716 when the voltage of main ESD14 that be represented by terminal 714 gets lower than The voltage of one or more assistant loads 16 reaches scheduled volume and starts connection signal and ignition signal when being effective, in Guan Bi After second switch device 24, the first switching device 22 can be disconnected.In the illustrated embodiment, start connect signal can by Dynamic event signal 720 of connecting provides.Second switch device charge pump circuit 740 is configured to putting via second switch device 24 Electricity charging grid disconnects and closes second switch device 24.Terminal 720 represents auxiliary ESD20.

First switching device 22 includes the single or multiple MOSFET being connected in parallel, and each have corresponding resistor.First opens The source electrode of each MOSFET closing device 22 is electrically coupled to main ESD14 via terminal 714, and the first switching device 22 is each The drain electrode of MOSFET is electrically coupled to one or more assistant load 16 via terminal 716.Based on from the first switched charge pump/compare The voltage for disconnecting the first switching device 22 that device circuit 760 receives, the first switching device 22 can disconnect and closure state Between switch.Second switch device 24 includes the single or multiple MOSFET being connected in parallel, and each have respective gates resistance.The The source electrode of each MOSFET of two switching devices 24 is electrically coupled to one or more assistant load 16, and via terminal 716 The drain electrode of each MOSFET of two switching devices 24 is electrically coupled to assist ESD20 via terminal 720.Based on from second switch device The voltage for disconnecting and close second switch device 24 that charge pump/comparator circuit 740 receives, second switch device 24 can Switch between closure state disconnecting.

Fig. 8 shows the non-restrictive illustrative schematic diagram of the switchgear module 150 of the Fig. 3 according to the disclosure, described Switchgear module includes bias control circuit the 801, first switching device charge pump/drive circuit 802, second switch device Charge pump/drive circuit 803 and controller 804.Circuit 801-803 includes diode, Zener diode, resistance widely Device, amplifier, capacitor, NAND gate, ground wire and instrument, each of which is used for the corresponding schematic symbols of common electronics by it Describe.Grid bias power supply circuit 801 draws power from the terminal 816 corresponding to assistant load 16.Grid bias power supply circuit includes Input filter, counter voltage are protected, and from terminal 807 respectively to the first and second switchgear charge pumps/drive circuit 802,803 supply predetermined adjustment voltage (such as, 5V, 12V).In the illustrated embodiment, controller 804 be processing means and Controller 10 corresponding to Fig. 1 and 3.

First switching device charge pump/drive circuit 802 is configured to via from charge pump/drive circuit 802 The output voltage of terminal 809 keeps the first switching device 22 normally closed.As it was previously stated, when the voltage of main ESD14 gets lower than one Individual or multiple assistant load 16 voltage reaches scheduled volume and starts connection signal 41 when being effective, at Guan Bi second switch dress After putting 24, it is possible to use disconnect the first switching device 22 from the useful signal 850 of controller 804 output.Such as, master is worked as The voltage of ESD14 gets lower than the voltage of one or more assistant load 16 and reaches scheduled volume and to start connection signal 41 be effective Time, controller 804 exports useful signal 850 and closes the first switching device 22 to stop from the output voltage of terminal 809, because of And the first switching device 22 is disconnected.In the illustrated embodiment, start connection signal 41 and may be provided to controller 804. Second switch device charge pump/drive circuit 803 is configured by by-pass switch (pass switch) circuit 805 via disconnected The grid of opening/closing conjunction second switch device 24 disconnects and closes second switch device 24, and described bypass switching circuit is by controlling The switch control logic of device 804 controls via the signal 860 exported from controller 804.In the illustrated embodiment, signal is worked as 860 is non-effectively to stop the output voltage Guan Bi second switch dress of the terminal 811 from charge pump/drive circuit 803 When putting the grid of 24, the by-pass switch 815 of bypass switching circuit 805 remains open.When signal 860 is effective, bypass is opened Close 815 grids being close to allow for closing from the output voltage of terminal 811 second switch device 24, thus cause second switch Device 24 closes.

First switching device 22 includes the single or multiple MOSFET being connected in parallel, and each have respective gates resistance.The The source electrode of each MOSFET of one switching device 22 is electrically coupled to main ESD14 via terminal 814, and the first switching device 22 The drain electrode of MOSFET is electrically coupled to one or more assistant load 16 via terminal 814.First switching device 22 can be based on from Voltage signal 812 that one switching device charge pump/drive circuit 802 receives and switch between closure state disconnecting, with The first switching device 22 is disconnected when signal 850 is effective.Second switch device 24 includes single or multiple being connected in parallel MOSFET, each have respective gates resistance.The source electrode of each MOSFET of second switch device 24 electrically connects via terminal 816 To one or more assistant loads 16, and the drain electrode of each MOSFET of second switch device 24 electrically connects via terminal 820 To assisting ESD20.Second switch device 24 can be based on the voltage received from second switch device charge pump/drive circuit 803 Boost signal 813 and disconnect and closure state between switch.Such as, it is effective when the signal 860 exported from controller 804 Time, voltage boost signal 813 will Guan Bi second switch device 24, and when signal 860 be non-effective time, voltage boost signal 813 will be switched off second switch device 24.

As received the ignition signal from ignition module 11 above with reference to the controller 804 described in the controller 10 of Fig. 3 13, carry out starting of self starter solenoid valve module 40 connect signal 41 and be automatically stopped signal 43 from pump module 42.Control Device 804 processed is configured to: reaching when the crank applying the plus end to main ESD14 rotates voltage (such as, ESD voltage 145) decline First scheduled volume and in the first short scheduled time slot (such as, 10 milliseconds) of starting at during less than the voltage of assistant load voltage 165, Carry out order the first switching device charge pump/drive circuit 802 via useful signal 850 and disconnect the first switching device 22.First Disconnecting in the switching device 22 scheduled time slot after second switch device 24 is closed, wherein, controller 804 connects in starting Messenger 41 become effectively after the predetermined delay maximum scheduled time slot of 2 milliseconds (such as, be) in via useful signal 860 Order second switch device charge pump/drive circuit 803 closes second switch device 24.Afterwards, the first switching device 22 is protected Hold disconnection, until having met above-mentioned one or more predetermined states.Controller 804 is ordered via non-effective signal 860 So that is used respectively by the voltage boost signal 813 of drive circuit 803 be automatically stopped effectively, starter connection non-effective Or the combination of non-effective signal 43,41,13 of lighting a fire is to disconnect second switch device 24, and meet other that formerly describe Predetermined state.

Fig. 9 shows that the engine crank at the exemplary battery isolator circuit utilizing Fig. 2 according to the disclosure turns Crank during dynamic event rotates voltage 502, load voltage 504 and the exemplary patterns 500 of electric current 506.It will be appreciated that Automatically during the starting of engine, voltage is provided by main ESD14, the energy needed for engine crank being rotated with supply.Cause This, during the crank of engine rotates, draw electric current from main ESD14.

The horizontal x-axis of figure 500 represents that time in seconds, left side vertical y-axis represent the electricity in units of volt Press, and right vertical y-axis represents the electric current in units of ampere.Rotate in response to the engine crank at about 12.1 seconds Event, crank rotates voltage 502 and drops below 11 volts from about 13 volts, and the electric current 506 drawn is from zero ampere Increase to about 890 amperes.Along with occurring engine to start, electric current 506 starts back to be down to zero ampere, and crank rotates voltage 502 start increasing is back to about 13 volts.It will be appreciated that load voltage 504 do not suffer from significant voltage and decline, this is because first Switching device 22 disconnect during engine crank rotation event with by starter motor 12 and main ESD14 from one or more auxiliary Help load 16 disconnection, and second switch device 24 closes to assist ESD20 Electricity Federation before the first switching device 22 disconnects It is connected to one or more assistant load 16.Therefore, during engine crank rotation event, ESD20 is to one or more for auxiliary Assistant load 16 provides energy.Due to the disconnection of starter motor 12 and main ESD14 with one or more assistant loads 16, voltage Load 504 does not suffers from voltage during engine crank rotates and declines.

Figure 10 shows the engine crank at the exemplary battery isolator circuit not utilizing Fig. 2 according to the disclosure Crank during rotation event rotates voltage 102, load voltage 104 and the exemplary patterns 100 of electric current 106.It will be appreciated that During the starting automatically of engine, voltage is provided by main ESD14, the energy needed for engine crank being rotated with supply. Therefore, during engine crank rotates, electric current is drawn from main ESD14.

Horizontal x-axis in this figure represents that time in seconds, left side vertical y-axis represent the electricity in units of volt Press, and right vertical y-axis represents the electric current in units of ampere.Thing is rotated in response to the engine crank at about 0.1 second Part, crank rotates voltage 102 and falls to approximately 7 volts from about 12 volts, and the electric current 106 drawn is from zero ampere of increase To about 900 amperes.Along with occurring engine to start, crank rotation voltage 102 starts increasing and is back to about 12 volts, and electric current 106 start back to be down to zero ampere.Being contrasted with the figure 500 of Fig. 9, load voltage 104 experienced by from about 12 volts to greatly The voltage of about 7 volts declines, and this is similar with crank voltage 102.Due to starter motor 12 and main ESD14 not from one Or multiple assistant load 16 disconnects, therefore during automatically the starting of engine, result in load electricity when engine crank rotates The big voltage of pressure 104 declines, and has drawn big electric current from main ESD14.As it was previously stated, the big voltage of load voltage 104 Decline and be referred to as voltage dip, and can cause relaying to the tracing trouble of the electrical system of driver, controller reset and Other electrical failure (such as, vehicle interior internal lighting device and annex are interrupted).

The disclosure has been described with some preferred embodiment and its deformation.Those skilled in the art are reading and are understanding It is contemplated that other deformation and replacement after this specification.Therefore, the disclosure is not intended to be limited to conceive as implementing the present invention's Optimal mode and disclosed specific embodiment, but the disclosure includes all enforcements of falling within the scope of the appended claims Example.

Claims

1., for the method realizing voltage stabilization during the engine start event of vehicle, described method includes:

The instruction receiving self starter solenoid valve module at switchgear module starts effectively rising of engine start event Dynamic connection signal；

It is in from receiving in the predetermined delay that signal is started at is connected in described effective starting and will assist in described switchgear module Electrical energy storage device is electrically coupled to one or more assistant load；

Only at described switch after described auxiliary electric energy storage device has been electrically coupled to the one or more assistant load At apparatus module, main electrical energy storage device and starter motor are electrically departed from from the one or more assistant load；With And

In response at described main electrical energy storage device and described starter motor from the one or more assistant load electrically The predetermined state occurred during disengaging, by described main electrical energy storage device and described starter motor at described switchgear module It is electrically coupled to the one or more assistant load.

The most described switchgear module includes:

First switching device, described first switching device only makes described main electrical energy storage device and described starter when disconnecting Motor electrically departs from from the one or more assistant load, and only Guan Bi time by described main electrical energy storage device and institute State starter motor and be electrically coupled to the one or more assistant load；

Second switch device, described auxiliary electric energy storage device is only electrically coupled to described when Guan Bi by described second switch device One or more assistant loads, and only when disconnecting, described auxiliary electric energy storage device is negative from the one or more auxiliary On-board electrical ground departs from；And

Controller, described controller is connected signal based on receiving to start, is automatically stopped signal from electro-hydraulic transmission pump module And disconnect described first and second switching devices from least one in the ignition signal of ignition module.

The most the method for claim 1, wherein in described predetermined delay, described auxiliary electric energy storage device is electrically connected Include to the one or more assistant load: described predetermined delay less than with in response to carrying out having of self starter solenoid valve module Effect starts connection signal and activates the time delay that starter control magnetic valve is relevant.

4. the method for claim 1, also includes:

After described auxiliary electric energy storage device is electrically coupled to one or more assistant load, based on by described switching device Make the relatively morning one of the following signal that module receives described auxiliary electric energy storage device from institute at described switchgear module Stating one or more assistant load electrically to depart from, described signal includes:

From the non-effective ignition signal of ignition module, described non-effective ignition signal indicates car key and closes situation；With And

Effectively being automatically stopped signal from electro-hydraulic transmission pump module, described to be effectively automatically stopped signal designation engine automatic The startup of stopping event.

The most only described auxiliary electric energy storage device be electrically coupled to one or By described main electrical energy storage device and described starter motor from the one or more assistant load after multiple assistant loads Electrically depart from and include:

Receive and indicate the non-effective starting connection signal that engine start event completes；And

In receiving the scheduled time slot that described non-effective starting connection signal is started at for the first time, the storage of described main electric energy is filled Put and electrically depart from from the one or more assistant load with described starter motor.

It is declined to become less than described auxiliary electric energy storage device when the monitoring crank at described main electrical energy storage device rotates voltage Monitoring voltage when reaching predetermined voltage amount, by described main electrical energy storage device and described starter motor from the one or more Assistant load electrically departs from.

The most the method for claim 1, wherein the monitoring voltage in response to described main electrical energy storage device exceedes described one Individual or multiple assistant load monitoring voltage reaches scheduled volume, described predetermined state occurs.

The most the method for claim 1, wherein signal is connected for the first time by described switching device in response to from described starting Module starts at, when receiving, scheduled time slot of having passed, and described predetermined state occurs.

The most the method for claim 1, wherein in response to described switchgear module from described starter solenoid valve module Receive and indicate the non-effective starting connection signal that engine start event completes, described predetermined state occurs.

10. the method for claim 1, also includes:

Voltage and the one or more auxiliary of monitoring described main electrical energy storage device at described switchgear module are negative The voltage carried；

When the voltage of described main electrical energy storage device reaches scheduled volume less than the voltage of the one or more assistant load and Only after described auxiliary electric energy storage device has been electrically coupled to the one or more assistant load, at described switching device At module, described main electrical energy storage device and described starter motor are electrically departed from from the one or more assistant load.

11. the method for claim 1, wherein engine start event include key ON engine start event and Any one in engine auto-start event.

First switching device, starter motor and main electrical energy storage device are only electrically connected by described first switching device when Guan Bi One or more assistant loads to vehicle；

Second switch device, auxiliary electric energy is only stored device when Guan Bi and is electrically coupled to one by described second switch device Or multiple assistant load；

Described second switch device is being closed, with by institute in receiving the predetermined delay that described effective starting connection signal is started at State auxiliary electric energy storage device and be electrically coupled to the one or more assistant load；And

After closing described second switch device, disconnect described first switching device with by described starter motor and described master Electrical energy storage device electrically departs from from the one or more assistant load.

13. equipment as claimed in claim 12, wherein, controller is also configured to perform following step, including:

In response to the one or more predetermined states occurred when disconnecting described first switching device, close described first switch dress Put described main electrical energy storage device and described starter motor are electrically coupled to the one or more assistant load.

14. equipment as claimed in claim 13, wherein, the one or more predetermined state includes:

The monitoring voltage of described main electrical energy storage device exceedes the monitoring voltage of the one or more assistant load and reaches scheduled volume；

Receive indicate that engine start event completes non-effective from described starter solenoid valve module by described controller Start and connect signal.

15. equipment as claimed in claim 12, wherein, described controller is also configured to perform following step, including:

In response to receiving the key-off shape indicating vehicle from described ignition module when closing described second switch device The non-effective ignition signal of condition, disconnects described second switch device so that described auxiliary electric energy is stored device from one or many Individual assistant load electrically departs from.

16. equipment as claimed in claim 12, wherein, described controller is also configured to perform following step, including:

Start in response to receiving the startup that indicates provided from electro-hydraulic transmission pump module when closing described second switch device What machine was automatically stopped event is effectively automatically stopped signal, disconnect second switch device with by described auxiliary electric energy storage device from institute State one or more assistant load electrically to depart from.

17. equipment as claimed in claim 16, wherein, when being configured to provide the electricity of pressurized hydraulic fluid to the speed changer of vehicle When dynamic motor driving pump is switched in the case of described tail-off, described electro-hydraulic transmission pump module provides effectively stops automatically Stop signal.

18. equipment as claimed in claim 12, wherein, described controller is also configured to perform following step, including:

Receive when disconnecting described second switch device and indicate the non-effective starting connection signal that engine start event completes；

Only connecting after signal starts at scheduled time slot of having passed from receiving described non-effective starting, disconnecting described second Switching device.

19. equipment as claimed in claim 12, wherein, disconnect described first switching device with by described starter motor and institute State main electrical energy storage device electrically to depart from from the one or more assistant load and include: when at described main electrical energy storage device Place monitoring crank rotate voltage be declined to become less than described auxiliary electric energy storage device monitoring voltage reach scheduled volume time, from by Described controller receives effectively to start connects described first switching device of disconnection in the scheduled time slot that signal is started at.

20. equipment as claimed in claim 12, wherein, described main electrical energy storage device provides electricity to described starter motor Can, rotate for making described engine crank during described engine start event.