CN109891085A - Engine starting system and engine starting gear - Google Patents

Engine starting system and engine starting gear Download PDF

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Publication number
CN109891085A
CN109891085A CN201780066727.1A CN201780066727A CN109891085A CN 109891085 A CN109891085 A CN 109891085A CN 201780066727 A CN201780066727 A CN 201780066727A CN 109891085 A CN109891085 A CN 109891085A
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CN
China
Prior art keywords
engine
motor
source
battery
driving gear
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Granted
Application number
CN201780066727.1A
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Chinese (zh)
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CN109891085B (en
Inventor
竹内良友
马场浩辅
山本正和
八木丰儿
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Denso Corp
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Denso Corp
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Publication of CN109891085A publication Critical patent/CN109891085A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • F02N11/0851Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/08Circuits or control means specially adapted for starting of engines
    • F02N11/0862Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F02N11/0866Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

Engine starting system (10) includes: driving gear (23), and driving gear (23) can be engaged with the output shaft (91) for being connected to engine (90) by driving gear (92);Make the motor (21) for driving gear rotation;Meshing device (25), the meshing device (25) change by the meshing state of driving gear and driving gear;The first power supply (31) of energy charging and discharging;And the second source (32) of energy charging and discharging.Engine starting system is when starting engine, during making to drive gear with before being engaged by driving gear using meshing device, it is supplied electric power from the first power supply to motor and does not supply electric power, supplied electric power from second source to meshing device and do not supplied electric power from second source to motor from the first power supply to meshing device.

Description

Engine starting system and engine starting gear
Related application is quoted
The application is helped herein based on Japanese patent application No. 2016-212158 filed on October 28th, 2016 Draw its contents.
Technical field
The present invention relates to a kind of engine starting systems for making engine start.
Background technique
In the past, in above system, there are a kind of starter solenoid (engagement dresses including being axially moveable pinion gear Set) and make engine crankshaft rotation starting motor (motor) system (referring to patent document 1).In patent document 1 In the system of record, the state based on vehicle to starter solenoid and starts what motor supplied electric power from the first battery Between state and the state supplied electric power from the second battery to starter solenoid and starting motor, switch over.
Existing technical literature
Patent document
Patent document 1: Japanese Patent Laid-Open 2016-125344 bulletin
Summary of the invention
However, existing in the case where being supplied electric power from a power supply to starter solenoid and starting motor because big The case where current direction starts motor and the voltage of power supply is caused to decline to a great extent.In these cases, to starter solenoid The controlling of the electric power of supply declines, thus a possibility that in the presence of that cannot carry out suitable control to the engagement of pinion gear.In patent In the system that document 1 is recorded, the solenoidal controlling of starter caused by not accounting for because of current direction starting motor Decline, there is also improved spaces.
The present invention makees to solve above-mentioned technical problem, provides a kind of engine starting system, can inhibit because of current direction Make the controlling decline of meshing device caused by the motor of engine crankshaft rotation.
First mode for solving above-mentioned technical problem is a kind of engine starting system, comprising:
Gear is driven, above-mentioned driving gear can be engaged with the output shaft for being connected to engine by driving gear;
Motor, above-mentioned motor rotate above-mentioned driving gear;
Meshing device, above-mentioned meshing device change the above-mentioned meshing state by between driving gear and above-mentioned driving gear;
First power supply of energy charging and discharging;And
The second source of energy charging and discharging,
When starting above-mentioned engine, until making above-mentioned driving gear and above-mentioned by driving gear using above-mentioned meshing device During before engagement, supplied electric power from above-mentioned first power supply to above-mentioned motor and not from above-mentioned first power supply to above-mentioned engagement Unit feeding electric power is supplied electric power from above-mentioned second source to above-mentioned meshing device and not from above-mentioned second source to above-mentioned electronic Machine supplies electric power.
According to above structure.Driving gear can be engaged with the output axis connection with engine by driving gear, pass through electricity Motivation and rotate.In addition, being changed using meshing device by the meshing state between driving gear and driving gear.Therefore, in benefit Made in the state of being driven gear to engage with driving gear with meshing device, makes that gear is driven to rotate using motor, to make Engine start.
Here, engine starting system includes can the first power supply of charging and discharging and the second source of energy charging and discharging. In addition, when starting engine, until using meshing device make to drive gear with during being completed to engage by driving gear, from the One power supply is supplied electric power to motor and is not supplied electric power from the first power supply to meshing device.Therefore, even if because electric current is from first Power supply flows to motor and the voltage of the first power supply is caused to reduce, and will not supply electric power from the first power supply to meshing device.
On the other hand, when starting engine, until making that gear is driven to engage it with by driving gear using meshing device Before during, supply electric power and do not supplied electric power from second source to motor from second source to meshing device.Therefore, it is driving Moving gear with engaged by driving gear during, do not supplied electric power from second source to motor, will not occur because electric current to The case where motor flows and the voltage of second source is caused to decline.Therefore, using supplying from second source to meshing device Electric power, so as to carry out suitable control to meshing device.
In second mode, supplied electric power from above-mentioned second source to ancillary equipment.
According to above structure, backup utility is acted from the electric power that second source supplies.As described above, in sliding tooth Wheel with engaged by driving gear during, will not occur because electric current to motor flowing due to cause the voltage of second source to decline The case where.Therefore, can inhibit the phenomenon that cause the movement of ancillary equipment unstable because electric current is flowed to motor.
In third mode, above-mentioned first power supply is connect with above-mentioned second source via switch in parallel, above-mentioned starting When engine, until using above-mentioned meshing device make above-mentioned driving gear with it is above-mentioned engaged by driving gear before during, general Above-mentioned switching is off-state.
According to above structure, since the first power supply and second source are connected via switch in parallel, by switch Open and-shut mode switches over, so as to cut off or connect the first power supply with second source.In addition, when starting engine, Until using meshing device make drive gear with before being engaged by driving gear during, by switching be off-state.Cause This will not occur to lead to the second electricity because electric current is flowed to motor during driving gear with being engaged by driving gear The case where voltage decline in source, can carry out suitable control to meshing device.In addition, be closed state by switching, so as to Charging and discharging is carried out between the first power supply and second source.
It is closed form by above-mentioned switching in the case where the starting of above-mentioned engine is completed in the 4th mode State.
It is closed state by switching in the completed situation of starting of engine according to above structure.Therefore, Can after the completion of the starting of engine, using second source to cause because being supplied electric power to motor can discharge capacity reduce The first power supply charge.As a result, bottom line needed for the capacity of the first power supply capable of being set as drive motor, The first power supply can be made to minimize.
In the 5th mode, in above-mentioned engine, it is provided with the rotation to generate electricity using the driving force of above-mentioned engine Motor, above-mentioned rotating electric machine are connect with above-mentioned first power supply or above-mentioned second source.
According to above structure, in the rotating electric machine that engine is provided with the driving force using engine and generates electricity, therefore, energy It is generated electricity after the engine is started up using rotating electric machine.In addition, rotating electric machine is connect with the first power supply or second source, because This, by being closed state by above-mentioned switching, so as to after the completion of the starting of engine, using rotating electric machine to first Power supply and second source charge.In addition, the first power supply or second source are connect with rotating electric machine, therefore, first is compared The structure that power supply and second source are connect with rotating electric machine can simplify wiring.
It in the 6th mode, is supplied electric power from above-mentioned second source to ancillary equipment, above-mentioned rotating electric machine and above-mentioned the The connection of two power supplys.
According to above structure, backup utility is acted from the electric power that second source supplies.In addition, rotating electric machine and The connection of two power supplys.Therefore, it can be supplied electric power from second source and rotating electric machine this two directions ancillary equipment, ancillary equipment can be made It acts more stable.
In the 7th mode, in the case where the starting of above-mentioned engine is completed, the charging based on above-mentioned first power supply At least one party in state and the charged state of above-mentioned second source switches over the open and-shut mode of above-mentioned switch.
According to above structure, in the completed situation of starting of engine, the charged state based on the first power supply and At least one party in the charged state of two power supplys switches over the open and-shut mode of switch.It therefore, can be to the charging of the first power supply Balance between amount and the charge volume of second source is adjusted, and can inhibit the overdischarge of the first power supply and second source, overcharge Electricity.
In the 8th mode, the service voltage of above-mentioned first power supply is different from the service voltage of above-mentioned second source, on It states the first power supply and above-mentioned second source is connected in parallel via voltage conversion device.
According to above structure, mutually different first power supply of service voltage and second source are via voltage conversion device and simultaneously Connection connection.Therefore, according to the state of the first power supply and second source, voltage is converted using voltage conversion device, thus Power supply can be mutually carried out between the first power supply and second source.
In the 9th mode, above-mentioned first power supply and ancillary equipment are connected via first switch, above-mentioned second source with Above-mentioned ancillary equipment is connected via second switch, in the case where exception has occurred in above-mentioned first power supply, by above-mentioned first switch It is switched to off-state and above-mentioned second switch is switched to closed state, abnormal situation has occurred in above-mentioned second source Under, above-mentioned second switch is switched to off-state and above-mentioned first switch is switched to closed state.
According to above structure, the first power supply and ancillary equipment are connected via first switch, and second source and ancillary equipment pass through It is connected by second switch.In addition, first switch is switched to off-state and is incited somebody to action in the case where exception has occurred in the first power supply Second switch is switched to closed state.Therefore, even if in the case where exception has occurred in the first power supply, also can from second source to Ancillary equipment supplies electric power.In addition, in the case where exception has occurred in second source, by second switch be switched to off-state and First switch is switched to closed state.It therefore, also can be from the first power supply even if in the case where exception has occurred in second source It is supplied electric power to ancillary equipment.
Tenth mode is a kind of engine starting gear,
It include: driving gear, above-mentioned driving gear can be engaged with the output shaft for being connected to engine by driving gear;
Motor, above-mentioned motor rotate above-mentioned driving gear;And
Meshing device, above-mentioned meshing device change the above-mentioned meshing state by between driving gear and above-mentioned driving gear,
When starting above-mentioned engine, until making above-mentioned driving gear and above-mentioned by driving gear using above-mentioned meshing device During before engagement, supplied electric power from the first power supply to above-mentioned motor and not from above-mentioned first power supply to above-mentioned meshing device It supplies electric power, supplied electric power from second source to above-mentioned meshing device and does not supply electricity from above-mentioned second source to above-mentioned motor Power.
According to above structure, engine starting gear is applied to the first power supply and second source, so as to constitute first The engine starting system of a mode can play function and effect identical with first mode.
In the 11st mode, including control unit, the electric power of the opposite above-mentioned meshing device supply of above-mentioned control unit carry out Control.
According to above structure, using control unit, the electric power supplied to meshing device is controlled.In addition, in driving gear and quilt During driving gear engagement, the feelings for causing the voltage of second source to decline because electric current is flowed to motor will not occur Condition can carry out suitable control to meshing device using control unit.
In the 12nd mode, including motor control part, driving of the above-mentioned motor control part to above-mentioned motor State is controlled.
According to above structure suitable control can be carried out to the driving condition of motor using motor control part.
Detailed description of the invention
Referring to attached drawing and description in detailed below, above-mentioned purpose that can be more clearly of the invention, other purposes, feature and excellent Point.Attached drawing is as described below.
Fig. 1 is the schematic diagram for indicating the engine starting system of first embodiment.
Fig. 2 is the schematic diagram for indicating the engine starting system of second embodiment.
Fig. 3 is the circuit diagram for indicating the control unit of meshing device.
Fig. 4 is the timing diagram for indicating the relationship between the open and-shut mode and electric current of switch.
Fig. 5 is the schematic diagram for indicating the engine starting system of third embodiment.
Fig. 6 is the schematic diagram for indicating the engine starting system of the 4th embodiment.
Fig. 7 is flow chart the step of indicating engine start control.
Fig. 8 is the schematic diagram for indicating the engine starting system of the 5th embodiment.
Fig. 9 is flow chart the step of indicating engine start control.
Figure 10 is the schematic diagram for indicating the engine starting system of sixth embodiment.
Figure 11 is the schematic diagram for indicating the engine starting system of the 7th embodiment.
Specific embodiment
(first embodiment)
Hereinafter, referring to attached drawing, to the first embodiment embodied in the engine starting system for being installed in vehicle into Row explanation.
As shown in Figure 1, connection rack gear 92 (is equivalent to and is driven in the crank axle 91 (being equivalent to output shaft) of engine 90 Moving gear).It, can be using petrol engine, diesel engine etc. as engine 90.The operating condition of engine 90 is by ECU (Electronic Control Unit: electronic control unit) 80 is controlled.ECU80 is configured to include CPU, ROM, RAM, input The microcomputer of output interface etc..
Engine starting system 10 includes starter 20, the first battery 31, the second battery 32, switch 35,36 etc..It rises Dynamic device 20 (being equivalent to engine starting gear) includes motor 21, pinion gear 23, meshing device 25 etc..
Motor 21 is driven and being fed with direct current, and the supply by stopping direct current stopping.In motor 21 Rotary shaft 22, be connected with pinion gear 23.Pinion gear 23 (be equivalent to driving gear) with the rotary shaft 22 of motor 21 rotation Then rotation.Pinion gear 23 can be engaged with above-mentioned gear ring 92.
Meshing device 25 is the well-known device for including solenoid, pinion gear mobile bar etc..In meshing device 25, Make the rotary shaft 22 of motor 21 along axially moving to the direction close to gear ring 92 by supplying direct current, by stopping directly The supply of galvanic electricity and keep rotary shaft 22 mobile to the direction for leaving gear ring 92.That is, in meshing device 25, by supplying direct current And engaging pinion gear 23 with gear ring 92, the supply by stopping direct current releasing engaging for pinion gear 23 and gear ring 92, with Separate pinion gear 23 with gear ring 92.
First battery 31 (being equivalent to the first power supply) and the second battery 32 (being equivalent to second source) are mutual The identical battery of service voltage (such as 12V).As the first battery 31 and the second battery 32, lead electric power storage can be used Pond, lithium-ions battery etc..The anode of first battery 31 is connect via switch 35 with motor 21, and the first battery 31 is born Pole ground connection.The anode of second battery 32 is connect via switch 36 with meshing device 25, the cathode ground connection of the second battery 32.It opens Closing 35,36 is, for example, normal closing type relay etc..First battery 31 and the second battery 32 are respectively independent, are not connected to each other.
ECU80 respectively controls the open and-shut mode of switch 35,36 when starting engine 90.Specifically, ECU80 exists After switch 36 is switched to closed state, switch 35 is switched to closed state at the time of regulation.Whereby, make pinion gear 23 with Gear ring 92 is engaged and is rotated.Then, when the revolving speed of engine 90 reaches egulation rotating speed, ECU80 starts the burning of fuel.So Afterwards, when the revolving speed of engine 90, which reaches crank rotation, terminates revolving speed (completely burned revolving speed (Japanese: crushing back translocation speed)), Switch 35,36 is switched to off-state and makes the proceed-to-send of engine 90 by ECU80.
It is described in detail above this embodiment presents the advantage that.
First battery 31 and the second battery 32 are respectively independent, are not connected to each other.Therefore, from the starting of engine 90 It during starting to crank rotation to terminate, is supplied electric power from the first battery 31 to motor 21, and not from the first battery 31 It is supplied electric power to meshing device 25.Therefore, even if leading to the first electric power storage due to electric current flows to motor 21 from the first battery 31 The voltage in pond 31 reduces, and will not supply electric power from the first battery 31 to meshing device 25.
During end the starting since engine 90 to crank rotation, from the second battery 32 to meshing device 25 supply electric power, and do not supply electric power from the second battery 32 to motor 21.Therefore, it is engaged in pinion gear 23 with gear ring 92 In the process, it is not supplied electric power from the second battery 32 to motor 21, will not occur to cause because electric current is flowed to motor 21 The case where voltage decline of second battery 32.Therefore, the electric power supplied from the second battery 32 to meshing device 25 is set To be optimal, so as to suitably control meshing device 25.As a result, solenoid of meshing device 25 etc. can be made optimal Change, be able to achieve the mitigation of the mesh impact of pinion gear 23 and gear ring 92, and then is able to achieve the miniaturization of meshing device 25 and resistance to The raising of long property.
(second embodiment)
Hereinafter, being equipped with the second embodiment party of control unit 26 to the switch 36 for replacing first embodiment referring to Fig. 2~4 Formula is illustrated.In addition, part same as the first embodiment is marked identical symbol and is omitted the description.
As shown in Fig. 2, starter 120 includes control unit 26.That is, the second battery 32 anode via control unit 26 with nibble It attaches together and sets 25 connections, the cathode ground connection of the second battery 32.
As shown in figure 3, control unit 26 includes the switch A and switch B being connected in series.As switch A, B, it can use and partly lead Body switch etc..The input side terminal of switch A is connect with the anode of the second battery 32.In the outlet side terminal and switch B of switch A Input side terminal tie point, be connected with the input side terminal of the solenoid 25a of meshing device 25.The output of solenoid 25a Side terminal ground connection.The outlet side terminal of switch B connects.Control unit 26 has the driving circuit (diagram is omitted) of driving switch A, B, The open and-shut mode of switch A, B are controlled.
As shown in figure 4, switch A is switched to closed state and is switched to switch B by control unit 26 during the prescribed period in TA Off-state.Then, during the prescribed period in TB, switch A is switched to off-state and switch B is switched to closure by control unit 26 State.During the prescribed period in TB, the current reflux of solenoid 25a is flowed to.Whereby, the actual current Ir quilt of solenoid 25a is flowed to Control is to require electric current It or so.In other words, specified time limit TA, TB are adjusted, so that the actual current Ir for flowing to solenoid 25a connects Closely require electric current It.
This embodiment presents the advantage that.Here, being only described to the advantages of being different from the first embodiment.
During pinion gear 23 is engaged with gear ring 92, do not supplied electric power from the second battery 32 to motor 21, Will not there is a situation where because electric current to motor 21 flow due to cause the voltage of the second battery 32 to decline.Therefore, pass through control The actual current Ir supplied to meshing device 25 (practical electric power) control is to require electric current It (it is required that electric power) by portion 26, so as to Suitably meshing device 25 is controlled.As a result, being able to achieve pinion gear 23 and the mesh impact of gear ring 92 and engaging sound The mitigation of sound, and then the durability of meshing device 25 can be improved.
Alternatively, it is also possible to deform and implement to below above embodiment progress.
When starting engine 90, is controlled instead of open and-shut mode of the ECU80 to switch 35, be also possible to control unit The open and-shut mode of 26 pairs of switches 35 controls.Specifically, control unit 26 is received from ECU80 and is started when starting engine 90 Signal, the electric power that opposite meshing device 25 supplies are controlled.Then, in pinion gear 23 and gear ring 92 at the time of engaging completion Switch 35 is switched to closed state by (defined period).According to above structure, can will be saved from ECU80 to the wiring of switch 35 It goes.
In addition it is also possible to using the knot for the switch 36 between the control unit 26 of Fig. 2 and the second battery 32, being equipped with Fig. 1 Structure.In addition, switch 36 can also be switched to closed state when starting engine 90 by ECU80.Control unit 26 passes through switch 36 It is supplied electric power from the second battery 32, to start the control supplied electric power to meshing device 25.According to above structure, due to setting The supply of the electric power of opposite control unit 26 is equipped with, the switch 36 that cutting switches over, thus, for example, in meshing device 25, control In the case that portion 26 is abnormal, they can be cut off with the second battery 32.
As shown in the chain-dotted line of Fig. 2, starter 120, which also can have, controls the driving condition of motor 21 Motor control part 27.In addition it is also possible to use with flowering structure, control unit 26 is communicated with motor control part 27, a side Start signal is received from ECU80, is instructed at the time of regulation to another party's sending action.According to above structure, compare from ECU80 It is connected separately with the structure of wiring with control unit 26 and motor control part 27, wiring can be made to simplify.
For example, switch 35 is switched to closed state when starting engine 90 by ECU80.By switch 35 from the first electric power storage Pond 31 supplies electric power, so that motor control part 27 before the driving for starting motor 21, sends engagement to control unit 26 and opens Begin to instruct.When control unit 26 receives engagement sign on from motor control part 27, pinion gear is made by meshing device 25 23 start to engage with gear ring 92.Control unit 26 sends engagement to motor control part 27 and completes letter after the completion of making above-mentioned engagement Number.When receiving engagement completion signal, motor control part 27 starts the driving of motor 21.In addition, engagement is replaced to complete The transmission of signal receives, and is also possible to motor control part 27 after having sent engagement sign on to control unit 26, utilizes Timer etc. after some period of time starts the driving of motor 21.In these cases, control unit 26 can be saved to electricity The structure of the transmission signal of motivation control unit 27.In addition it is also possible to match using between the control unit 26 of Fig. 2 and the second battery 32 The structure of the switch 36 of standby Fig. 1.In addition it is also possible to be, in the case where receiving start signal from ECU80, Motor Control Switch 36 is switched to closed state by portion 27.According to above structure, can save between control unit 26 and motor control part 27 The structure communicated.
In addition, instead of the control unit 2 of Fig. 2, it can also be using the structure for the switch 36 for being equipped with Fig. 1.In addition it is also possible to be, Switch 36 is switched to closed state when starting engine 90 by motor control part 27.
It in Fig. 2, can also use, starter 120 has motor control part 27, and saves the structure of switch 35. In these cases, motor control part 27 receives start signal from ECU80, before the driving for starting motor 21, to control Portion 26 processed sends engagement sign on.
Structure between starter 120 and the second battery 32 can also be set to using control unit 26.
(third embodiment)
Hereinafter, referring to Fig. 5, to the third supplied electric power in this second embodiment from the second battery 32 to ancillary equipment Embodiment is illustrated.In addition, part identical with second embodiment is marked identical symbol and is omitted the description.
As shown in figure 5, being connected with the ancillary equipment 41,42 of vehicle in the second battery 32.Ancillary equipment 41,42 is air blast Machine, wiper, compressor, auto navigation, radio, headlamp etc..In addition, from the second battery 32 to ancillary equipment 41,42 It supplies electric power, acts ancillary equipment 41,42.
This embodiment presents the advantage that.Here, being only described to the advantage different from second embodiment.
Ancillary equipment 41,42 is acted by the electric power supplied from the second battery 32.As described above, in pinion gear 23 During engaging with gear ring 92, it will not occur to cause the voltage of the second battery 32 to decline because electric current is flowed to motor 21 The case where.Therefore, can inhibit the phenomenon that cause the movement of ancillary equipment 41,42 unstable because electric current is flowed to motor 21.
In addition, can also use instead of the structure supplied electric power from the second battery 32 to ancillary equipment 41,42 from first The structure that battery 31 is supplied electric power to ancillary equipment 41,42.
(the 4th embodiment)
Hereinafter, referring to Fig. 6, to the first battery 31 in this second embodiment and the second battery 32 via switch in parallel 4th embodiment of connection is illustrated.In addition, marking identical symbol simultaneously for part identical with second embodiment It omits the description.
As shown in fig. 6, the anode of the first battery 31 is connect with the anode of the second battery 32 via switch 37.That is, First battery 31 is connected in parallel with the second battery 32 via switch 37.
Fig. 7 is the flow chart for indicating the step of ECU80 is executed, engine start controls.
Firstly, ECU80 makes pinion gear 23 start to engage (S11) with gear ring 92 by control unit 26.
Then, ECU80 is judged (S12) to whether motor 21 is in rotary course.Specifically, it is based on switch 35 Whether whether the detected value that the revolving speed in closed state, detection motor 21 obtains is greater than 0 etc., be in motor 21 Judged in rotary course.In above-mentioned judgement, in the case where being judged as that motor 21 is in rotary course (S12: It is), switch 37 is switched to off-state.On the other hand, in the case where being judged as that motor 21 is not in rotary course (S12: no), the switching of the open and-shut mode without switch 37.
Then, ECU80 engages completion (S14) by what control unit 26 made pinion gear 23 and gear ring 92.In order in pinion gear 23 with after the completion of the engaging of gear ring 92, also keep the state, control unit 26 makes to keep electric current (it is required that electric current It) in solenoid 25a Middle flowing.In addition, the processing of S12, S13 continuously carry out during pinion gear 23 is engaged with gear ring 92.
Then, ECU80 starts the crank rotation (S15) of engine 90.Specifically, it is engaged in pinion gear 23 with gear ring 92 Under state, switch 35 is switched to closed state, to make pinion gear 23 rotate (S15) using motor 21.
Then, ECU80 is judged (S16) to whether motor 21 is in rotary course.In above-mentioned judgement, sentencing Break (S16: yes) in the case where being in rotary course for motor 21, switch 37 is switched to off-state (S17).Another party Face, in the case where being judged as that motor 21 is not in rotary course (S17: no), open and-shut mode without switch 37 Switching.
Then, ECU80 makes the crank rotation of engine 90 terminate (S18).Specifically, the burning for starting fuel is being started After the revolving speed of machine 90 reaches crank rotation completion revolving speed, switch 35 is switched to off-state, is made using control unit 26 to engagement The power supply of device 25 stops.In addition, the processing of S16, S17 continuously carry out during the crank rotation for carrying out engine 90.
Then, switch 37 is switched to closed state (S19) by ECU80.Then, terminate above-mentioned a series of processing (knot Beam).
This embodiment presents the advantage that.Here, being only described to the advantage different from second embodiment.
First battery 31 is connected in parallel with the second battery 32 via switch 37, therefore, passes through opening to switch 37 Closed state switches over, so as to cut off or connect the first battery 31 with the second battery 32.In addition, starting in starting When machine 90, until switch 37 is switched to off-state before engaging pinion gear 23 with gear ring 92 using meshing device 25.Cause This will not occur to lead to the second electric power storage because electric current is flowed to motor 21 during pinion gear 23 is engaged with gear ring 92 The case where voltage decline in pond 32, suitably meshing device 25 can be controlled.In addition, switch 37 is switched to closed form State, so as to carry out charging and discharging between the first battery 31 and the second battery 32.
In the case where the starting of engine 90 is completed, switch 37 is switched to closed state.It therefore, can be in engine After the completion of 90 starting, using 32 pairs of the second battery cause because being supplied electric power to motor 21 can discharge capacity reduce First battery 31 charges.As a result, the capacity of the first battery 31 can be set as needed for drive motor 21 Bottom line can be such that the first battery 31 minimizes.
Alternatively, it is also possible to deform and implement to below above embodiment progress.
Since the required capacity of the first battery 31 (being equivalent to the first power supply) can be minimized, as first Power supply, it is not limited to lead storage battery, lithium-ions battery, it can also be using capacitors such as lithium-ion capacitors.
In the processing of S14, after the completion of engaging between pinion gear 23 and gear ring 92, it is only necessary to keep the meshing state , do not need the electric power that critically opposite meshing device 25 supplies and controlled.Therefore, instead of the processing of S16, S17, ECU80 can also execute the increased processing of electric power for making to supply to meshing device 25 by control unit 26.According to above structure, energy It realizes the mitigation of the mesh impact and mesh sound of pinion gear 23 and gear ring 92, and then the durability of meshing device 25 can be improved. In addition, in pinion gear 23 and gear ring 92 in the state of engaging completion, even if leading to second because electric current is flowed to motor 21 The voltage of battery 32 declines, and can also meshing state be made to keep.
(the 5th embodiment)
Hereinafter, referring to Fig. 8, in the fourth embodiment from the second battery 32 and alternating current generator to ancillary equipment 41, it 42 supplies electric power such 5th embodiment and is illustrated.In addition, for portion identical with third, the 4th embodiment Point, it marks identical symbol and omits the description.
As shown in figure 8, being equipped with the 95 (phase of alternating current generator to generate electricity using the driving force of engine 90 in engine 90 When in rotating electric machine).Alternating current generator 95 is connect with the second battery 32 and ancillary equipment 41,42.In addition, passing through exchange hair The electric power that motor 95 generates electricity is supplied to the second battery 32 and ancillary equipment 41,42.
In the present embodiment, ECU80 executes being automatically stopped and restarting automatically for engine 90.In detail, ECU80 exists Defined automatic stop condition is automatically stopped engine 90 in the case where setting up, and restarts what condition was set up automatically defined In the case of restart engine 90 automatically.
Fig. 9 is the flow chart for indicating the step of ECU80 is executed, engine start controls.It is above-mentioned it is a series of processing be Start in the case where by driver's manual starting or in above-mentioned restart in the case that condition is set up automatically.S11~S18 Processing it is identical as the processing of S11~S18 of Fig. 7.
Whether ECU80 (S18) after the completion of making the crank rotation of engine 90 is less than the charge volume of the first battery 31 First specified amount is judged (S20).Above-mentioned first specified amount is set as, and can be driven using the electric power supplied from the first battery 31 Motor 21 is moved so as to start the charge volume of the bottom line of engine 90.In above-mentioned judgement, it is being judged as the first electric power storage In the case that the charge volume in pond 31 is smaller than the first specified amount (S20: yes), switch 37 is switched to closed state (S21).Another party Face, be judged as the first battery 31 charge volume it is small unlike the first specified amount in the case where (S20: no), advance to the place of S22 Reason.
Then, whether ECU80 is bigger than the second specified amount to the charge volume of the first battery 31 is judged (S22).It is above-mentioned Second specified amount is set as the amount bigger than above-mentioned first specified amount, is set as that the charge volume of the first battery 31 abundance can be regarded as Charge volume.In above-mentioned judgement, be judged as the first battery 31 charge volume it is bigger than the second specified amount in the case where (S22: It is), switch 37 is switched to off-state (S23).On the other hand, it is being judged as the charge volume of the first battery 31 unlike second In the case that specified amount is big (S22: no), the processing of S24 is advanced to.
Then, ECU80 is judged (S24) to the starting sign on the presence or absence of engine 90.Specifically, starting After the completion of the starting of machine 90 (S18), if defined automatic stop condition is set up, it is automatically stopped engine 90.Then, ECU80 it is defined automatically restart condition set up in the case where, be judged as the starting sign on there are engine 90, advising It is fixed restart automatically condition it is invalid in the case where, be judged as the starting sign on there is no engine 90.In sentencing for S24 During disconnected, in the case where being judged as the starting sign on there is no engine 90 (S24: no), since the processing of S20 It executes again.On the other hand, in the deterministic process of S24, the case where being judged as the starting sign on there are engine 90 Under (S24: yes), executed again since the processing of S11.
This embodiment presents the advantage that.Here, being only described to the advantage different from the 4th embodiment.
In engine 90, it is provided with the alternating current generator 95 to generate electricity using the driving force of engine 90 and is therefore sending out After motivation 90 starts, it can be generated electricity by alternating current generator 95.Further, since alternating current generator 95 and the second battery 32 connect It connects, therefore, above-mentioned switch 37 is switched to closed state, so as to utilize alternative electric generation after the completion of the starting of engine 90 Machine 95 charges to the first battery 31 and the second battery 32,
Second battery 32 is connect with alternating current generator 95, and the first battery 31 is not connect with alternating current generator 95, because This can be such that wiring simplifies compared to the structure that the first battery 31 and the second battery 32 are connect with alternating current generator 95 respectively.
Alternating current generator 95 is connect with the second battery 32.It therefore, can be from the second battery 32 and alternating current generator 95 This two side supplies electric power towards ancillary equipment 41,42, and the movement of ancillary equipment 41,42 can be made more stable.
In the case where the starting of engine 90 is completed, based on the charged state of the first battery 31, switch switch 37 Open and-shut mode.Therefore, can balance between the charge volume to the first battery 31 and the charge volume of the second battery 32 carry out It adjusts, overdischarge, the overcharge of the first battery 31 and the second battery 32 can be inhibited.
Be judged as the first battery 31 charge volume it is smaller than the first specified amount in the case where, switch 37 is switched to and is closed Conjunction state.Therefore, the charge volume of the first battery 31 can be made to increase to the charge volume for the bottom line that engine 90 can be made to start More than.
Be judged as the first battery 31 charge volume it is bigger than the second specified amount in the case where, switch 37 is switched to disconnected Open state.Therefore, in the case where the charge volume of the first battery 31 reaches abundance, the charging knot of the first battery 31 can be made Beam.
Alternatively, it is also possible to deform and implement to below above embodiment progress.
Can also be connect with alternating current generator 95 using the first battery 31, the second battery 32 not with alternating current generator The structure of 95 connections.In these cases, connect respectively with alternating current generator 95 compared to the first battery 31 and the second battery 32 The structure connect can also be such that wiring simplifies.
ECU80, based on the charged state of the second battery 32, can also be cut in the case where the starting of engine 90 is completed Change the open and-shut mode of switch 37.In these cases, also can charge volume to the first battery 31 and the second battery 32 fill Balance between electricity is adjusted, and can inhibit overdischarge, the overcharge of the first battery 31 and the second battery 32.
Instead of alternating current generator 95, also can using can execute power operation and power generation MG (Motor Generator: Motor generator).In these cases, when restarting engine 90 automatically, also engine 90 can be made to start using MG.
(sixth embodiment)
Hereinafter, referring to Fig.1 0, in the 5th embodiment by the first battery 31 as the confession than the second battery 32 Give voltage high battery, instead of switch 37, the sixth embodiment for being provided with power inverter is illustrated.For with The identical part of five embodiments marks identical symbol and omits the description.
As shown in Figure 10, the service voltage of the first battery 131 is higher than the service voltage of the second battery 32.For example, the The service voltage of one battery 131 is 48V.
First battery 131 is connected in parallel with the second battery 32 via voltage conversion device 51.Voltage conversion device 51 have the voltage step-down inputted from the first battery 131 with the function that exports to the second battery 32 and will store from second Function of the boost in voltage that battery 32 inputs to be exported to the first battery 131.In addition, voltage conversion device 51 has first The function of the connection cutting of battery 131 and the second battery 32.
This embodiment presents the advantage that.Here, being only described to the advantage different from the 5th embodiment.
During pinion gear 23 is engaged with gear ring 92, using voltage conversion device 51 by 131 He of the first battery Connection cutting between second battery 32, to will not occur to lead to the second battery 32 because of current direction motor 21 The case where voltage declines, can suitably control meshing device 25.
Mutually different first battery 131 of service voltage and the second battery 32 are via voltage conversion device 51 and simultaneously Connection connection.Therefore, according to the state of the first battery 131 and the second battery 32, using voltage conversion device 51 to voltage into Row conversion, so as to mutually carry out power supply between the first battery 131 and the second battery 32.
In the case where that can not supply electric power from the first battery 131, as the processing under deadly condition, electricity can be utilized Press conversion equipment 51 by the boost in voltage inputted from the second battery 32 to export to motor 21.Whereby, it is avoided that engine The case where 90 fail to start.The case where as that can not be supplied electric power from the first battery 131, for example, it may be assumed that being stored for first The situation of the charge volume deficiency of battery 131.
In the case where that can not be supplied electric power from the second battery 32, as the processing under deadly condition, can also utilize Voltage conversion device 51 is by the voltage step-down inputted from the first battery 131 to export to control unit 26.Whereby, it is avoided that and starts The case where 90 fail to start of machine.In addition, using voltage conversion device 51 by the voltage step-down inputted from the first battery 131 with to Ancillary equipment 41,42 exports, so as to continue the movement of ancillary equipment 41,42.
Alternatively, it is also possible to deform and implement to below above embodiment progress.
It can also be by the second battery 32 as the battery higher than the service voltage of the first battery 131.Above-mentioned In the case of, it is opposite direction by the boosting and decompression of voltage conversion device 51.
Can also convert the voltage into device 51 be configured to only to be boosted and be depressured in a side structure.In above-mentioned feelings Under condition, by reducing the function of voltage conversion device 51, to be able to achieve the miniaturization of voltage conversion device 51, low cost.
(the 7th embodiment)
Hereinafter, referring to Fig.1 1, in the 5th embodiment the second battery 32 connect via switch with ancillary equipment 41,42 The 7th embodiment connect is illustrated.In addition, part identical with the 5th embodiment is marked identical symbol and is saved Slightly illustrate.
As shown in figure 11, the first battery 31 connects with ancillary equipment 41,42 via switch 37 (being equivalent to first switch) It connects.Second battery 32 is connect with ancillary equipment 41,42 via switch 38 (being equivalent to second switch).Alternating current generator 95 connects The tie point being connected between switch 37,38 and ancillary equipment 41,42.
Switch 37 is switched to off-state and will switch 38 in the case where the first battery 31 is abnormal by ECU80 It is switched to closed state.Switch 38 is switched to off-state and incited somebody to action by ECU80 in the case where the second battery 32 is abnormal Switch 37 is switched to closed state.The case where being abnormal as the first battery 31, such as can be assumed as the first battery 31 have occurred short circuit.
This embodiment presents the advantage that.Here, being only described to the advantage different from the 5th embodiment.
In the case where the first battery 31 is abnormal, switch 37 is switched to off-state and switches switch 38 For closed state.It therefore, also can be from the second battery 32 to auxiliary even if in the case where exception has occurred in the first battery 31 Equipment 41,42 supplies electric power.In addition, switch 38 is switched to off-state in the case where the second battery 32 is abnormal And switch 37 is switched to closed state.It therefore, also can be from first even if in the case where exception has occurred in the second battery 32 Battery 31 is supplied electric power to ancillary equipment 41,42.As a result, the movement of ancillary equipment 41,42 can be made to continue.
Although being described according to embodiment to the present invention, it should be understood that the present invention is not limited to above-mentioned realities Apply example, structure.The present invention also includes various variations, the deformation in equivalency range.In addition to this, various groups Conjunction, mode, further include only one element, the other combinations below of more than one or one, mode also belong to the present invention Scope, thought range.

Claims (12)

1. a kind of engine starting system (10) characterized by comprising
It drives gear (23), driving gear (23) can be with the output shaft (91) for being connected to engine (90) by driving gear (92) it engages;
Motor (21), the motor (21) rotate the driving gear;
Meshing device (25), the meshing device (25) change the meshing state by driving gear and the driving gear;
The first power supply (31,131) of energy charging and discharging;And
The second source (32) of energy charging and discharging,
When starting the engine, the driving gear is set to engage it by driving gear with described using the meshing device Before during, supply electric power and do not supply from first power supply to the meshing device to the motor from first power supply To electric power, supplies electric power and do not supplied from the second source to the motor from the second source to the meshing device Electric power.
2. engine starting system as described in claim 1, which is characterized in that
It is supplied electric power from the second source to ancillary equipment (41,42).
3. engine starting system as claimed in claim 1 or 2, which is characterized in that
First power supply is connected in parallel with the second source via switch (37),
When starting the engine, until engaging the driving gear by driving gear with described using the meshing device It is off-state by the switching during before.
4. engine starting system as claimed in claim 3, which is characterized in that
It is closed state by the switching in the case where the starting of the engine is completed.
5. engine starting system as described in claim 3 or 4, which is characterized in that
In the engine, it is provided with the rotating electric machine (95) to generate electricity using the driving force of the engine,
The rotating electric machine is connect with first power supply or the second source.
6. engine starting system as claimed in claim 5, which is characterized in that
It is supplied electric power from the second source to ancillary equipment,
The rotating electric machine is connect with the second source.
7. the engine starting system as described in any one of claim 3~6, which is characterized in that
In the case where the starting of the engine is completed, charged state and the second source based on first power supply At least one party in charged state switches over the open and-shut mode of the switch.
8. engine starting system according to any one of claims 1 to 3, which is characterized in that
The service voltage of first power supply (131) is different from the service voltage of the second source,
First power supply and the second source are connected in parallel via voltage conversion device (51).
9. engine starting system as described in claim 1, which is characterized in that
First power supply and ancillary equipment are connected via first switch (37),
The second source is connect with the ancillary equipment via second switch (38),
In the case where exception has occurred in first power supply, the first switch is switched to off-state and by described second Switching is closed state, and in the case where exception has occurred in the second source, the second switch is switched to disconnection State and the first switch is switched to closed state.
10. a kind of engine starting gear (20,120) characterized by comprising
It drives gear (23), driving gear (23) can be driven with what the output shaft (91) for being connected to engine (90) was connect Gear (92) engagement;
Motor (21), the motor (21) rotate the driving gear;And
Meshing device (25), the meshing device (25) change the meshing state by driving gear and the driving gear,
When starting the engine, the driving gear is set to engage it by driving gear with described using the meshing device Before during, supplied electric power from the first power supply to the motor and from first power supply to the meshing device supply electricity Power is supplied electric power from second source to the meshing device and is not supplied electric power from the second source to the motor.
11. engine starting gear as claimed in claim 10, which is characterized in that
Including control unit (26), the electric power of the opposite meshing device supply of the control unit (26) is controlled.
12. engine starting gear as described in claim 10 or 11, which is characterized in that
Including motor control part (27), the motor control part (27) controls the driving condition of the motor.
CN201780066727.1A 2016-10-28 2017-10-24 Engine starting system and engine starting device Active CN109891085B (en)

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PCT/JP2017/038382 WO2018079560A1 (en) 2016-10-28 2017-10-24 Engine start system and engine start device

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JP6624009B2 (en) 2019-12-25

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