CN1131940C - Engine actuating device - Google Patents

Abstract

An engine actuating device improves startability by reducing an influence occurring due to a load during starting of an engine. The relay RyB is maintained at an OFF-state during a time set according to an engine water temperature. When the relay RyA is turned ON, a starter motor 171 is energized and while the relay RyB is in an OFF state, a motor 171 is reversed and when the relay RyB is brought into an ON-state, the motor is run normally. This constitution decides the degree of warming up according to a water temperature, shortens a crank reversing time when warming up is progressed, and lengths a crank reverse time when warming up is not progressed. Through reversing of a time set described above, a crank is positioned in a low load torque range and thereafter, the motor is run normally.

Description

Engine starting method

Technical field

The present invention relates to engine starting method, particularly, relate to the engine starting method that is suitable for when starting, reducing the influence of load torque and startability is improved.

Background technique

From concerning the consideration of environment or energy-conservation viewpoint, waste gas or the fuel consume when suppressing idling particularly, once the vehicle shutting engine down is stopped automatically, being operated and indicating starting from halted state twist grip throttle control one, is known (Japanese Patent Application Publication spy opens clear 63-75323 communique) with regard to automatically piloting engine and make the stopping starting controller of engine of vehicle start once more.

On the other hand, the influence of the load torque in order to reduce to start, make and make after starter motor (actuating motor) once reversing, making starter motor is known (the flat 7-71350 communique of Japan Patent Publication Laid-Open) along the engine starting gear of regular hand engine rotation (positive veer) rotation.In this starting device, the reverse by regulation corner or stipulated time reduces surface friction drag, one has reduced in the scope of surface friction drag rotating speed is risen at this, overcomes the load in the compression stroke whereby and improves startability.

The sense of rotation of control starter motor is so that in the above-mentioned engine starting gear that bent axle was once being reversed make it then just changeing, exist following problem.When motor is cold machine and during warming-up, the stickiness of machine oil etc., the spin friction of motor is different to the resistance of engine revolution just., owing in above-mentioned engine starting gear, make crankshaft rotating predetermined angular or stipulated time, make the angle of swing difference of the reverse generation of certain hour because of the size of above-mentioned friction.That is to say, also not rotate predetermined angular sometimes and just pass through the stipulated time that this moment is because the effect that reverse produces is little so can't start well.

On the other hand,, make and reverse the temporal adaptation motor state when being cold machine if in order to eliminate the problems referred to above, then when warming-up because become invalidly and reversed for a long time, start time-consuming such problem so produce.

Summary of the invention

The objective of the invention is to, solve above-mentioned prior art problems, provide a kind of and make the starting of motor reliable, can shorten engine starting method up to the time of starting.

Realize above-mentioned purpose by means of following (1)～(a 6) of the present invention scheme.

(1) a kind of engine starting method, make after bent axle reversed predetermined reverse time, just make it then pilot engine, wherein, the aforementioned reverse time, spin friction according to motor is set, and sets longly in the big occasion of this spin friction, sets shortly in the little occasion of this spin friction.

(2) represent aforementioned spin friction with engine temperature, when engine temperature is high, must lack aforementioned reverse time set, when engine temperature is low, must grow aforementioned reverse time set.

(3) aforementioned reverse time set becomes to surpass when predetermined engine revolution friction, and bent axle turns over the time required between compression top dead center and exhaust top dead center.

(4) motor is stopped, the driveaway operation that carries out in response to the driver and motor is started once more, is set the reverse time when being shorter than first engine start at the aforementioned reverse time during the starting once more of this motor.

(5) ratio of the aforementioned reverse time of the aforementioned reverse time during first engine start when starting once more, aforementioned spin friction is more little then to be set greatly more.

(6) torque the during reverse of aforementioned bent axle is set for less than crossing over the required torque of compression top dead center.

If adopt above-mentioned (1)～(6) scheme, then in the occasion that bent axle is just made it after once reversing then pilot engine, chien shih bent axle reverse according to according to the predefined reverse of the spin friction of motor the time.Thereby, the crank shaft angle position in the time of can becoming to make that the reverse time set reverse stops, just positive turn-off begins to become the position of crossing over compression top dead center when just changeing with little torque in the position.

Usually, owing to can think that bent axle does not stop near the big compression top dead center of load torque, so, bent axle is stopped between the compression top dead center of exhaust top dead center and its front by as the scheme of (3), becoming above bent axle to turn over the required time of upper dead center reversing time set.According to present inventor's etc. investigation, the little scope of leap torque that this position is a compression top dead center by from bent axle is just being changeed, can be started reliably.

In addition, motor is stopped automatically, the occasion that the driveaway operation that is undertaken by the driver starts motor once more, because warming-up process finishes, so in the scheme of (4), a reverse time of comparing during with initial start-up shortens, and can carry out the starting in the short time.Here, if spin friction reduces, then since during starting once more when thinking the initial start-up of warming-up not and behind the warming-up amounts of rotation based on the bent axle of the time of reverse do not have difference, so, reduced the poor of reverse time separately as the scheme of (5).

And then, if adopt the scheme of (6), then because the rotating speed and the torque of the motor when having reduced to reverse, so do not cross over compression top dead center when reversing.Thereby, even the crank angle position when reversing beginning also makes bent axle stop at positive veer the place ahead of this compression top dead center near the occasion of compression top dead center, can begin therefrom just to change.

Description of drawings

Fig. 1 is the major component functional-block diagram of starting arrangement according to an embodiment of the invention.

Fig. 2 is an overall side view of having installed the pedal-type two-wheel motorcycle that uses engine starting gear of the present invention.

Fig. 3 is the instrument panel planimetric map on every side of pedal-type two-wheel motorcycle.

Fig. 4 is the take a seat schematic representation of summary of detection device of expression.

Fig. 5 is that the motor shown in Fig. 2 is along A-A line side cross sectional view.

Fig. 6 is the cylinder head side view cutaway drawing on every side of motor.

Fig. 7 is the driving side sectional view of automatic transimission.

Fig. 8 is the slave end sectional view of automatic transimission.

Fig. 9 is the sectional view of expression oil circulation device.

Figure 10 is the side view cutaway drawing of the configuration of expression crankshaft sensor.

Figure 11 is the main sectional view of the configuration of expression crankshaft sensor.

Figure 12 is the skeleton diagram of expression as the overall formation of the starting stop control system of one embodiment of the present of invention.

Figure 13 is the skeleton diagram (1) of the function of expression master control set.

Figure 14 is the skeleton diagram (2) of the function of expression master control set.

Figure 15 is the figure that the main action of master control set is shown as Schedule.

Figure 16 is the figure of the switching condition of expression pattern and action scheme.

Figure 17 is the expression crank angle position and crosses over the figure of the relation of torque.

Figure 18 is the figure of the relation of expression reverse time and water temperature.

Figure 19 is the flow diagram of starting control.

Figure 20 is the flow diagram that motor stops to control.

Embodiment

Explain the present invention with reference to the accompanying drawings.Fig. 2 is the overall side view of having installed as the two-wheeled motor vehicle of the engine starting gear of one embodiment of the present of invention.In the figure, Vehicular body front 2 couples together via low tread portion 4 with rear vehicle 3, becomes the vehicle frame of the bone of car body, is made of the down tube 6 and the person in charge 7 substantially.Fuel tank and trunk (all not drawing) support by being responsible for 7, are disposing seat 8 above it.Seat 8 can double as be located at the lid of the trunk of its underpart, for the switching of trunk, can support rotationally by means of the unillustrated linkage that is located at its front F R.

On the other hand, in Vehicular body front 2, on down tube 6, be provided with and turn to standpipe 5, one turn to 5 of standpipes supporting front fork 12A thus.From the upwardly extending part of front fork 12A handlebar 11A is being installed, axle is supporting front-wheel 13A on the front end of the part of extending downwards on the other hand.The top of handlebar 11A is covered with the handlebar cover 33 of double as instrument panel.

Be responsible for 7 midway on rotate freely ground axle suspension and link component (suspension bracket) 37, swing member 17 connects to be supported on by means of these suspension bracket 37 swings freely to be responsible on 7.On swing member 17, installing single cylinder 4 two-stroke engines 200 in its front portion.Constitute belt type adjustable speed drive 35 to the rear from motor 200, on this stepless speed changer 35, connecting reducing gear 38 via the centrifugal clutch mechanism of hereinafter addressing.And axle is supporting trailing wheel 21 on reducing gear 38.In the upper end of reducing gear 38 and be responsible between 7 the upper bend portion and clamping posterior bumper 22.In the front portion of swing member 17, connecting the sucking pipe 23 that stretches out from the cylinder head 32 of motor 200, and then on sucking pipe 23, disposing Carburetor 24 and the air-strainer 25 that is connected to this Carburetor 24.

At the cardinal extremity of fixing kick starter bar 28 from the outstanding kick starter axles 27 of the transmission-case cover 36 of belt type adjustable speed drive 35, be provided with starting pedal 29 at the front end of kick starter bar 28.Articulated master bracket 26 on the pivot 18 of the bottom that is located at swing member 31 erects (drawing with dot and dash line) to this main car frame 26 during parking.

Fig. 3 is the instrument panel planimetric map on every side of aforementioned two-wheeled motor vehicle, in the instrument panel 192 of handlebar cover 33, is provided with ready light 256 and storage battery tutorial light 276 with speedometer 193.Ready light 256, as described in detail below, the motor in the control that stops of motor is glittering when stopping, and opens throttle then state that motor can start immediately and start to walk if alerting driver is in.Storage battery tutorial light 276 lights when battery tension reduces so that the undercharge of alerting driver storage battery.

On handlebar cover 33, be provided with and allow or limit idling Idle Switch of using 253 and the starter switch 258 that starts starter motor (actuating motor) usefulness.In the right part of handlebar 11, be provided with twist grip throttle control 194 and break handle 195.Moreover, about the root etc. of twist grip throttle control on, though have switcher of speaker or Direction indicator switch equally, do not draw here with existing two-wheel vehicle.

Below, near the formation of the switch of taking a seat the hinge that is configured in opening and closing seat 8 usefulness and this hinge is described.Fig. 4 is the schematic representation of structure of hinge of the switching usefulness at expression seat 8.In the figure, the seat 8 of the lid of double as trunk 9a opens and closes freely in the direction of arrow A this trunk 9a and to be provided with.For can opening and closing seat 8, on trunk 9a, be provided with hinge axis 102 and be center swing hinge member 100 freely with hinge axis 102.On the other hand, the end of the opposition side of the side that just engages with hinge axis 102 of the other end of hinge member 100 is rotated the 2nd hinge axis 110 on the framework 8a that is located at seat 8 and is joined together freely.Thereby seat 8 can be that swing in the direction of arrow A at the center with hinge axis 102, can also be that swing in the direction of arrow B at the center with the 2nd hinge axis 110 simultaneously.

Clamping spring 103 between hinge member 100 and aforesaid frame 8a, is that the center loads for seat 8 along clockwise direction among the figure with the 2nd hinge axis 110.And then, the switch 254 of taking a seat is set between hinge member 100 and aforesaid frame 8a, take a seat and framework 8a is that the center is carried out ON Action when counterclockwise rotating established amount in figure and detected the state of taking a seat with the 2nd hinge axis 110 the driver.

Next, be elaborated with regard to aforementioned motor 200.Fig. 5 is the sectional view of the actuating and generating device that is connected with the bent axle of motor, is the sectional view along the intercepting of the A-A position among Fig. 2.In Fig. 5, be provided with on the swing member 31 that remains on the suspension bracket 37 on the aforementioned person in charge 7 by main bearing 10, the 11 rotation bent axle 12 of supporting freely having, on this bent axle 12, connecting connecting rod 14 via crank pin 13.Be provided with the internal rotor 15 of actuating and generating device in an end of the bent axle 12 that stretches out from crankshaft room 9.

Internal rotor 15 has rotor hub 16 and stationary fit in the permanent magnet 19 of the outer circumferential face of rotor hub 16.Permanent magnet 19 is for example Nd-Fe-B series, is that the center is disposed on 6 positions by equal angles with bent axle 12.Rotor hub 16 heart portion therein is matched with the front end tapering of bent axle 12.Disposing flange component 39 on an end (with an end of bent axle 12 opposition sides) of rotor hub 16, rotor hub 16 flange component 39 therewith is fixed in bent axle 12 by bolt 20 together.

On rotor hub 16, form to the side-prominent small diameter cylinder portion 40 of aforementioned flange component 39 1, on the periphery of cylindrical part 40, this cylindrical part 40 is being provided with brush spring 41 sliding freely.The brush spring 41 pressured helical springs 42 that contract load towards aforementioned flange component 39 directions.On brush spring 41, be provided with the brush 44 that the pressured helical spring 42 that contracts loads.Running through the connecting pin 45 that the center line with bent axle 12 extends abreast on rotor hub 16, the one end is fixed on the aforementioned electric brush holder 41, and the other end is connected in the flat board 46 of speed regulator (hereinafter addressing in detail) simultaneously.

The stator core 48 of external stator 47 that is configured in the periphery of internal rotor 15 is fixed in swing member housing 31 by means of bolt 49.On the yoke 48a of this stator iron core 48, twining power coil 50 and actuating coil 51, the cylindrical part 48b that stretches out from stator core 48 is covered with aforementioned electric brush holder 41.On the end of cylindrical part 48b, connecting commutator frame 52, on this commutator frame 52, fixing commutator segment 53 slidably with aforementioned brush 44.That is to say that commutator segment 53 is configured on the position that stands facing each other with the forward brush 44 of stating compression helical spring 42 loadings.

Moreover, though the brush 44 that in Fig. 5, only draws, certainly not only this, but requirement is set along the sense of rotation of internal rotor 15.One of the number of brush and commutator segment or shape example is described in the specification of the preceding application (Japanese Patent Application Publication spy opens flat 9-215292 number) that the applicant proposes.In addition, the stroke of brush 44 is constrained to established amount, so as brush spring 41 by means of the speed regulator of hereinafter addressing when bent axle 12 1 lateral deviations are leaned on, brush 44 leaves commutator segment 53.Between brush spring 41 and brush 44, unillustrated stop mechanism is set for travel limits.

In the end of aforementioned rotor hub 16 just with auxiliary section one side of bent axle 12, the speed regulator 54 that automatically switches start mode and generation mode is being set.Speed regulator 54 comprises aforementioned dull and stereotyped 46 and the roller 55 as the speed regulator flyball that this flat board 46 is used towards the centerline direction bias of bent axle 12.Though roller 55 preferably is provided with resin crust person on metal fuse, also can be that bundle is provided with resin crust person, perhaps wholely use the resin former.Form the recess 56 of accommodating aforementioned roller 55 on rotor hub 16, this recess 56 is formed in the conic section that external stator 47 1 sides narrow as shown in the figure.

On aforementioned flange component 39, radiator fan 57 is installed, is provided with radiator 58 facing to this radiator fan 57.In addition, on bent axle 12, between internal rotor 15 and main bearing 11, fixing sprocket wheel 59, on this sprocket wheel 59, hanging to obtain and be used for the chain 60 that the power of drive cam shaft (with reference to Fig. 6) uses from bent axle 12.Moreover sprocket wheel 59 integrally forms with the gear of using to the pump transferring power that makes lubrication oil circulation 61.The gear transmission power of gear 61 on the live axle that is fixed on the Gerotor pump of hereinafter addressing.

In the above-described configuration, apply voltage by the storage battery (not shown) to commutator segment 53 if push starter switch, then electric current flows through actuating coil 51 via brush 44, internal rotor 15 rotations.As a result, the bent axle 12 that combines with internal rotor 15 is rotated and motor 200 is started.If the rotating speed of motor 200 improves, then speed regulator flyball 55 is subjected to centrifugal force, moves and reaches the position shown in the dot and dash line among the figure towards the peripheral direction of rotor hub 16 in recess 56.

If speed regulator flyball 55 moves, then dull and stereotyped 46 and with dull and stereotyped 46 connecting pins that combine 45 also bias shown in dot and dash line.Because the other end of this connecting pin 45 combines with brush spring 41, so brush spring 41 bias similarly.Because the stroke of brush 44 is restricted as mentioned above, so if brush spring 41 bias must be bigger than this one stroke, then brush 44 is broken off with contacting of commutator segment 53.Brush 44 leaves after the commutator segment 53, and bent axle 12 depends on engine-driving to rotate, and the result is by means of power coil 51 generatings, to the storage battery supplying electric current.

Next, the cylinder head structure on every side of motor 200 is described.Fig. 6 is the cylinder head side view cutaway drawing on every side of motor.Be configured in the piston 63 in the cylinder 62, be connected to the little distolateral of connecting rod 14 via wrist pin 64.The spark plug 65 that is being threaded on cylinder head 32, its electrode part is towards the firing chamber of formation between the head of piston 63 and the cylinder head 32.Surrounded by water jacket 66 around the cylinder 62.

In cylinder head 32, the top of aforementioned cylinder 62 is provided with the camshaft 69 that is supported freely by bearing 67,68 rotations.On camshaft 69, cooperating fastening 70, on this fastening 70, fixing cam sprocket wheel 72 by means of bolt 71.On cam sprocket wheel 72, hang chain 60.By means of this chain 60, the rotation of aforementioned sprocket wheel 59 (with reference to Fig. 5) the just rotation of bent axle 12 is delivered to camshaft 69.

Be provided with rocking arm 73 on the top of camshaft 69, this rocking arm 73 is along with the rotation of camshaft 69 is shaken according to the shape of the cam of camshaft 69.The cam face of camshaft 69 is determined according to the regulation stroke of 4 two-stroke engines, so that Aspirating valves 95 and outlet valve 96 are opened and closed.Sucking pipe 23 is opened and closed by Aspirating valves 95, and outlet pipe 97 is opened and closed by outlet valve 96.

Though on camshaft 69, integrally form exhaust cam and air inlet cam,, be provided with the relief cam 98 that only camshaft 69 is engaged in reverse direction in abutting connection with these cams.Relief cam 98 is followed the trail of the rotation of camshaft 69 and is turned to the position more outstanding than the peripheral shape of exhaust cam when camshaft 69 reverses.

Thereby, when just changeing, camshaft 69 can make outlet valve 96 become the state that promotes a little, can alleviate the load in the engine compresses process.Because the torque in the time of can having reduced dynamic crankshaft whereby is so can use small-sized as the starter motor of 4 two-stroke engines.As a result, exist and to strengthen the such advantage in tilt angle to miniaturization around the bent axle.Moreover, just to change not quite for a moment by cam, the profile of relief cam 98 just returns in the peripheral shape of exhaust cam.

On cylinder head 32, form the pump chamber 76 that surrounds by water pump seat 74 and water pump cover 75.In pump chamber 76, disposing the pump shaft 78 of impeller 77.Pump shaft 78 is engaged in the end of camshaft 69, keeps freely by means of bearing 79 rotations.The driving force of pump shaft 78 obtains by means of the pin 80 of the central part that is engaged in cam sprocket wheel 72.

On skull 81, be provided with bleed valve 94.This bleed valve 94 sucks air when producing negative pressure in outlet pipe 97 and improves discharging.Moreover, though be provided with sealing component, the explanation of omitting each everywhere at the periphery of pump chamber 76.

Next, illustrate the rotation speed change of motor 200 and be delivered to the automatic speed variator of trailing wheel.Fig. 7, Fig. 8 are the sectional views of the automatic speed variator part of motor, and Fig. 7 is a driving side, and Fig. 8 is a slave end.In Fig. 7, at bent axle 12, the end of a side opposite with a side of the internal rotor 15 that aforementioned actuating and generating device is set is provided with around the belt pulley 83 of hanging vee-belt 82 usefulness.Belt pulley 83 is made up of fast pulley sheet 83a that is fixed with respect to bent axle 12 sense of rotation and axial motion and the movable belt pulley sheet 83b that slides vertically freely with respect to bent axle 12.Just do not contact at the back side of movable belt pulley sheet 83b on the one side of vee-belt 82 retaining plate 84 is installed.Retaining plate 84 with respect to bent axle 12 along sense of rotation and axially both sides its move and be limited ground rotation integrally.The vacancy that is surrounded by retaining plate 84 and movable belt pulley sheet 83b forms the recess of accommodating as the roller 85 of speed regulator flyball.

On the other hand, the clutch mechanism that power is connected to trailing wheel 21 is constructed as follows.In Fig. 8, the main shaft 125 of clutch supports by being set in bearing 127 in the housing 126 and the bearing 129 that is set in the gear-box 128.On this main shaft 125, supporting the fast pulley sheet 132a of belt pulley 132 by bearing 130 and 131.On the end of main shaft 125, fixing the clutch plate 134 of cup-shaped by nut 133.

On the axle sleeve 135 of aforementioned fixation belt pulley sheet 132a, the movable belt pulley sheet 132b of belt pulley 132 is being set sliding freely along the longitudinal direction of main shaft 125.Movable belt pulley sheet 132b can integrally cooperate disk 136 rotatably around main shaft 125.Between disk 136 and movable belt pulley sheet 132b, be provided with along the compression helical spring 137 of the directive effect rebounding force that makes distance expansion between the two.In addition, on disk 136, be provided with the shoes 139 that supports freely by pin 138 swings.Shoes 139 is swung to peripheral direction because of centrifugal action when the rotating speed of disk 136 improves, the interior week of contact clutch plate 134.Moreover, spring 140 is set, so that shoes 139 contacts clutch plates 134 when disk 136 reaches the rotating speed of regulation.

Fixing small gear 141 on main shaft 125, this small gear 141 is meshed with gear 143 on being fixed on pony axle 142.And then the small gear 144 that is fixed on the pony axle 142 is meshed with the gear 146 of output shaft 145.Trailing wheel 21 is made up of wheel rim 21a and the tire 21b that is inserted in around the wheel rim 21a, and wheel rim 21a is fixed in aforementioned output shaft 145.

In the above-described configuration, in the minimum occasion of engine speed, roller 85 is in 2 positions shown in the solid line of Fig. 7, and vee-belt 82 is around the smallest diameter portion that is hung on belt pulley 83.The position of the solid line of Fig. 8 that the movable belt pulley sheet 132b bias of belt pulley 132 is loaded in compression helical spring 137, vee-belt is around the maximum diameter part that is hung on belt pulley 132.Under this state, because the main shaft of centrifugal clutch 125 rotates with minimum speed, so put on the centrifugal force minimum of disk 136, shoes 139 is owing to inwardly being drawn in by spring 140, so do not contact clutch plate 134.That is to say that the rotation of motor is not delivered to main shaft 125, wheel 21 does not rotate.

On the other hand, lean on centrifugal force towards periphery direction bias at the high occasion roller 85 of engine speed.The position of the roller 85 the when position shown in the dot and dash line of Fig. 7 is maximum speed.If roller 85 is towards periphery direction bias, then because movable belt pulley sheet 83b presses to fast pulley sheet 83a one thruster, so vee-belt 82 moves to the maximum diameter of belt pulley 83.So, in centrifugal clutch one side, movable belt pulley sheet 132b overcomes compression helical spring 137 and bias, and vee-belt 82 moves to the minimum diameter of belt pulley 132.Thereby the centrifugal force that is added on the disk 136 increases, and shoes 139 overcomes spring 140 and protruding, contacts with clutch plate 134.As a result, the rotation of motor is delivered to main shaft 125, and power is delivered to wheel 21 via train of gearings.So chronotropic action is brought into play in changing along with the rotating speed of motor around hanging diameter of the belt pulley 83 of 82 pairs of bent axle 12 sides of vee-belt and the belt pulley 132 of centrifugal clutch side.

As mentioned above, though can give actuating coil 51 energisings during engine start and motor is loaded, in the present embodiment, and use by foot-operated 200 the pedal-start device of piloting engine that moves.With further reference to Fig. 7 pedal-start device is described.Fixing the driven castellated gear 86 that foot pedal starting is used at the back side of aforementioned fixation belt pulley sheet 83a.On the other hand, in lid 36 1 sides, the supporting axle 88 of helical gear 87 is being supported in rotation freely.Fix cup 89 in the end of supporting axle 88, on the end face of this cup 89, forming the castellated gear 90 of driving that is meshed with aforementioned driven castellated gear 86.

And then, on lid 36, rotate and supporting kick starter axle 27 freely, on this foot pedal starting axle 27, welding the fan-shaped helical gear 91 that is meshed with aforementioned helical gear 87.End at kick starter axle 27 just forms spline from the outwards outstanding part of lid 36, is cooperating the spline that is located on the kick starter bar 28 (with reference to Fig. 8) on this spline.Moreover, label the 92, the 93rd, Returnning spring.

In the above-described configuration, if enter into starting pedal 29, then kick starter axle 27 and fan-shaped helical gear 91 overcome Returnning spring 93 and rotate.Helical gear 87 and fan-shaped helical gear 91, mutual Hand of spiral are set for and are made the occasion of rotating owing to entering into of starting pedal at fan-shaped helical gear 91 produce the thrust that supporting axle 87 is loaded to belt pulley 83 1 sides.Thereby if enter into starting pedal 29 then supporting axle 87 lean on to belt pulley 83 1 lateral deviations, the castellated gear 90 of the driving that forms on the end face of cup 89 is meshed with driven castellated gear 86.As a result, make bent axle 12 rotations, the starting of motor 200 becomes possibility.If engine start then weakens entering into of starting pedal 29, when fan-shaped helical gear 91 was reset spring 92,93 counter-rotatings, the engagement that drives castellated gear 90 and driven castellated gear 91 was just removed.

Below, the supply system of lubricant oil is described with reference to Fig. 9.Engine oil supplying portion is located at the bottom of crankshaft room 9.In oil sump 147, form the pipeline 148 that is used for introducing machine oil, machine oil is inhaled into Gerotor pump 149 by arrow D1.Be discharged to pipeline 150 behind the machine oil rising pressure of suction Gerotor pump 149.Output in the crankshaft room via pipeline 150 by arrow D2, D3.

Here, on the pump shaft 151 of Gerotor pump 149,, and then on this gear 152, meshing the gear 61 that is combined on the bent axle 12 in conjunction with gear 152.That is to say that Gerotor pump 149 makes the oil circulation of lubricated usefulness along with the rotation of bent axle 12 is driven.

As above explanation, in the present embodiment, the sprocket wheel 59 of drive cam shaft 69 usefulness or oil pump with the gear 61 that drives usefulness, are installed on the bent axle 12 in abutting connection with bearing 11 ground of supporting crankshaft 12.And, in position, just on the not far position of bearing 11, disposed the internal rotor 15 that comprises permanent magnet 19 near these sprocket wheels 59 or gear 61.Particularly, disposed the speed regulator flyball 55 of the governor mechanism of automatically switch driving and generating near bearing 11.

Below, the configuration of the sensor of output crank shaft pulse is described.Figure 10 is the side view cutaway drawing around the bent axle of configuration of the expression sensor (CRANK PULSES generator) that sends CRANK PULSES, and Figure 11 is its main sectional view.In these figure, crankcase is made up of Front crank case 99F and Rear Crank Case 99R, and CRANK PULSES generator 153 is in Rear Crank Case 99R one side, vertically is provided with bent axle 12.And it detects the outer periphery configuration facing to left crank 12L with end 153a.Form protuberance and just become magnetoresistor portion 154 on the periphery of aforementioned left crank 12L, CRANK PULSES generator 153 combines and the testing signal at output crank shaft angle on a change magnetoresistor portion 154 magnetic therewith.

Next, the stop-and-go system with regard to motor describes.In this system, have restriction idling mode and allow the idling mode.Specifically, once the vehicle shutting engine down is stopped automatically, the starting of vehicle becomes possible (below be also referred to as " stopping the starting mode ") with regard to automatically starting once more at halted state one process oil valve engine in restriction idling mode.In addition, allow the idling mode to have two kinds, in the one, the heat operation during with engine start etc. is a purpose, allows idling (hereinafter referred to as " start mode ") for the moment after first engine start.In another kind, allow idling (hereinafter referred to as " Idle Switch mode ") all the time by driver's intention (setting that switch carries out).

Figure 12 is the skeleton diagram of the overall formation of the starting stop control system in the expression motor 200.In the figure, with the actuating and generating device 250 of bent axle 12 coaxial settings, be made of starter motor 171 and alternator (ACG) 172, the generation power that ACG 172 produces is via 168 chargings of regulator rectifier 167 accumulators.Regulator rectifier 167 controls to 12V to 14.5V to the output voltage of actuating and generating device 250.Storage battery 168 is supplied with driving current to starter motor 171 when cranking-motor relay 162 conductings, via main switch 173 load current is supplied to various general electrical equipment 174 and master control set 160 etc. simultaneously.

On master control set 160, connecting the Ne sensor (CRANK PULSES generator) 153 that detection of engine rotational speed N e uses, the Idle Switch 253 that the idling of manual permission or limiting engine 200 is used, the driver exports the switch 254 of taking a seat of " H " level once being seated to the seat make contact, detect the vehicle speed sensor 255 of the speed of a motor vehicle, glittering ready light 256 in stopping the starting mode, detect the throttle sensor 257 of accelerator open degree θ, drive starter motor 171 and 200 the starter switch 258 of piloting engine, export the stop switch 259 of " H " level in response to brake service, the storage battery tutorial light 276 that the voltage of storage battery 168 is warned undercharge once being lower than that predetermined value (for example 10V) is lighted and to the driver, and cooling-water temperature sensor 155.Cooling-water temperature sensor 155 is cooling water temperatures of detection of engine, can judge the warm-up mode of motor according to this testing result.

And then, on master control set 160, also connecting the ignition control device (comprising spark coil) 161 that the spark plug 65 and the rotation of bent axle 12 are synchronously lighted a fire, apply electrical power to the control terminal of the cranking-motor relay 162 of starter motor 171, apply electrical power to the control terminal of the Headlamps relay 163 of Headlamps 169, apply electrical power to the control terminal of the secondary cranking-motor relay 164 that is arranged on the secondary starter motor 165 on the Carburetor 166, and under rated condition, produce the buzzer 175 that alarm song impels the driver to note.

Moreover, be not limited to by what Headlamps relay 163 carried out to the power supply of Headlamps 169 control and switch on or off switching.For example, can replace Headlamps relay 163 and adopt switching element such as FET, replace making power supply to cut off, thereby cycle in accordance with regulations and dutycycle make switching element intermittently reduce the voltage that applies to Headlamps 169 in fact, adopt so-called copped wave control.

Figure 13, Figure 14 are the skeleton diagrams (1,2) of the formation of expression master control set 160 on function, and the label identical with Figure 12 represented same or equal part.In addition, among Figure 15, the control content of the cranking-motor relay control device 400 that the guide look expression is hereinafter addressed, the control content of secondary starter motor control device 900, the control content of ready light control device 600, the control content of IGNITION CONTROL portion 700, the control content of action switching part 300, the control content of the control content of warning buzzer control device 800 and charging control section 500.

The action switching part 300 of Figure 13, when the state of Idle Switch 253 and the state of vehicle etc. are defined terms, switch to certain mode in " start mode ", " stopping the starting mode " and " Idle Switch mode ", simultaneously " stopping the starting mode " further switched to the 1st action scheme (hereinafter referred to as " the 1st scheme ") of total ban idling and under rated condition, allow certain scheme in the 2nd action scheme (hereinafter referred to as " the 2nd scheme ") of idling exceptionally.The 2nd scheme is suitable for as the exhaustion of the accumulators of the occasion that prevents under the state of lighting Headlamps 169 long-time shutting engine down, and exhaustion of the accumulators prevents mode.

In the action switching signal carry-out part 301 of action switching part 300, the state signal of Idle Switch 253 is transfused to.The state signal of Idle Switch 253 illustrates " L " level under dissengaged positions (restriction idling), under on-state (permission idling) " H " level is shown.The speed of a motor vehicle continues detection unit 303 and has timer 303a, if detect in vehicle speed sensor 255 that the speed of a motor vehicle more than the predetermined speed continues to surpass the scheduled time then the signal of exporting " H " level.

Action switching signal carry-out part 301, if the Idle Switch 253 and the speed of a motor vehicle continue the output signal of detection unit 303, and the igniting dissengaged positions of motor continues to exceed schedule time (being 3 minutes in the present embodiment), then in response to the igniting shutoff signal S that becomes " H " level ₈₀₂₁, the manner of execution of master control set 160 and the signal S that action scheme is used are switched in output _310a, S _301b, S _301c

Figure 16 schematically represents to move the figure of switching condition of manner of execution that switching signal carry-out part 301 produces and action scheme.In action switching signal carry-out part 301, master control set 160 is reset if aforementioned main switch 173 is dropped into, and perhaps Idle Switch 253 is placed in connection (1. condition is set up), and then " start mode " started by manner of execution switching part 301a.At this moment, the manner of execution signal S of manner of execution switching part 301a output " L " level _301a

And then, at this one " start mode " if in the speed of a motor vehicle that detects more than the predetermined speed continue to surpass the scheduled time (2. condition is set up), then manner of execution switches to " stopping the starting mode " by manner of execution switching part 301a from " start mode ".At this moment, the manner of execution signal S of manner of execution switching part 301a _301aBecome " H " level from " L " level.Just " the 1st scheme " started by action scheme switching part 301b after aforementioned " start mode " transition, and idling is under an embargo.At this moment, the action scheme signal S of action scheme switching part 301b _301bBecome " L " level.

In " the 1st scheme ", judge that the igniting cut-out continues above 3 minutes (3. condition is set up) if cut off lasting detection unit 802 (Figure 13) by the igniting of hereinafter addressing in detail, action scheme in then " stopping the starting mode " switches to " the 2nd scheme " by action scheme switching part 301b from " the 1st scheme ".At this moment, the action scheme signal S that exports from action scheme switching part 301b _301bBecome " H " level from " L " level.

And then if 2. aforementioned condition is set up in " the 2nd scheme ", then action scheme switches to " the 1st scheme " by action scheme switching part 301b from " the 2nd scheme ".At this moment, the action scheme signal S of action scheme switching part 301b _301bBecome " L " level from " H " level.

Investigation according to the present inventor, wait for that the wait right-hand bend in traffic light or the crossroad is about 30 seconds to 2 minutes, the parking that surpasses this time is to wait for traffic light or wait for parking beyond turning right, and for example the possibility of the one-sided current control that causes of road construction or traffic jam etc. is very high.Therefore, in the present embodiment, be formed in by " stopping the starting mode " that motor stops if making Headlamps point light yellow long-time (in the present embodiment above 3 minutes) stop just in advancing by force, then action scheme switched to " the 2nd scheme " and permission idling from " the 1st scheme ".Thereby, if because the driver drops into starter switch 258 then can pilot engine once more, and the parking under idling mode becomes possibility, so can prevent to continue for a long time to light the exhaustion of the accumulators that Headlamps 169 produces.

On the other hand, when main switch switches to when connecting from cut-out, if Idle Switch is for connecting (6. condition is set up), then from the manner of execution signal S of the Idle Switch mode starting 301c of portion output _301cBecome " H " level from " L " level, " Idle Switch mode " started.Moreover, " stopping the starting mode " though in " the 1st scheme " and " the 2nd scheme ", " Idle Switch mode " started if 4. Idle Switch 25 is set up by the condition of dropping into.

In addition, in " Idle Switch mode " if in make Idle Switch 253 for cutting off (5. condition is set up), then from the manner of execution signal S of manner of execution switching part 301a output _301aBecome " L " level and " start mode " started.

Get back to Figure 13, the output signal of input Ne sensor 153 in Ne detection unit 306 if engine speed surpasses desired speed, is then exported the signal of " H " level to Headlamps control device 305.Ne detection unit 306 in case engine speed surpasses desired speed, then is cut off all up to main switch 173 this output is maintained in " H " level.Headlamps control device 305 is according to aforementioned each actuating signal S _301a, S _301b, S _301c, the output signal of Ne detection unit 306 and the output signal of detection unit 701 of advancing output to the control signal of " H " level or " L " level the control terminal of Headlamps relay 163.Headlamps 169 is lighted if the signal of " H " level is input to Headlamps relay 163.

Moreover, replacing Headlamps relay 163 to adopt the occasion of switching elements such as FET, Headlamps control device 305 is not the control signal of output " L " level, but the pulse signal of the cycle of output regulation and dutycycle and copped wave control are to the power supply of Headlamps 169.

Headlamps control device 305 as shown in Figure 15, is exported connection signal all the time except " start mode ".That is to say, in " start mode ", the engine speed more than the setting rotating speed that detects regulation by Ne detection unit 306 (being 1500rpm in the present embodiment), output connection signal when perhaps judging the speed of a motor vehicle greater than 0km by the detection unit 701 of advancing.

Moreover, replacing Headlamps relay 163 to adopt the occasion of switching elements such as FET, in " the 1st scheme " of " stopping the starting mode ", can be suppressed to bottom line to the discharge of storage battery by coming the switching of copped wave control switch element according to IGNITION CONTROL described in detail below.

That is to say, if IGNITION CONTROL is interrupted in response to vehicle stops (cut-out), motor stops automatically, then the Headlamps control device 305, make Headlamps 169 dim lights with cycle of regulation and the pulse signal copped wave control switch element of dutycycle, make the dim light voltage (for example 8.6V) that the voltage (for example 13.1V) of voltage when connecting all the time is reduced to regulation in fact that applies to Headlamps 169.Then, if begin IGNITION CONTROL once more according to driveaway operation, motor starts once more, and then Headlamps control device 305 is to " H " level signal of switching element output direct current.

So, when the stopping automatically of motor, do not extinguish Headlamps 169, can suppress the discharge of storage battery by dim light.Thereby, can reduce from the charge volume of generator during afterwards starting to storage battery, thus the result since the acceleration of the electrical load of generator when reducing starting improve.

IGNITION CONTROL portion 700, at aforementioned each manner of execution, action scheme, the igniting action that allows or forbid under defined terms, being undertaken by ignition control device 161.Whether the detection unit 701 of advancing is in travel condition according to differentiating vehicle from the testing signal of vehicle speed sensor 255 inputs, if be in travel condition then export the signal of " H " level.

' or ' circuit 702, output advance detection unit 701 output signal and the state signal of throttle sensor 257 logic with.' or ' circuit 704, output aforementioned activities mode signal S _301aEnergizing signal, action scheme signal S _301bWith action scheme signal S _301cLogic and.' or ' circuit 703, to the logic of the output signal of aforementioned each ' or ' circuit 702,704 of ignition control device 161 outputs and.Ignition control device 161, if input signal be " H " level then just carry out the igniting action every predetermined timing, if be that " L " level just interrupts igniting and moves.

IGNITION CONTROL portion 700, as shown in Figure 15, because if a certain in " start mode ", " stopping the 2nd scheme of the mode of starting to walk " and " Idle Switch mode ", then the output signal of ' or ' circuit 704 becomes " H " level, so export the signal of " H " level all the time from ' or ' circuit 703.That is to say that in " start mode ", " stopping the 2nd scheme of the mode of starting to walk " or " Idle Switch mode ", ignition control device 161 moves all the time.

In contrast, because in " stopping the 1st scheme of the mode of starting to walk ", the output signal of ' or ' circuit 704 is " L " level, so to judge that by the detection unit 701 of advancing vehicles advance, perhaps throttle open and the output of ' or ' circuit 702 to become " H " level be that condition is carried out the igniting action.In contrast, if vehicle stop state, and throttle is closed then interruption igniting action.

Warning buzzer control device 800 in every kind of manner of execution and action scheme, according to the travel condition of vehicle or driver's the state of taking a seat, as the warning that impels all attention usefulness of driver, sends for example buzzer.The state signal of sensor 254 continues to not taking a seat to take a seat in the detection unit 801.The lasting detection unit 801 of not taking a seat has the timer 8012 to driver's the time of not taking a seat timing, and 8012 times of timer are once the persistent signal S that do not take a seat that finishes to send " H " level ₈₀₁₂Moreover the timer 8012 of present embodiment preestablishes the time is finished.

Igniting cut off to continue detection unit 802, has timer 8021, to igniting timing break time of motor and detects behind the igniting dissengaged positions igniting shutoff signal S of output " H " level immediately ₈₀₂₃Make timer 8021 startings simultaneously.8021 times one of timer finish, and just persistent signal S is cut off in the igniting of output " H " level ₈₀₂₁In the present embodiment, timer 8021 is set in 3 timesharing the time is finished.

Buzzer control device 805 is according to each manner of execution (scheme) signal S _301a, S _301b, S _301c, persistent signal S does not take a seat ₈₀₁₂, persistent signal S is cut off in igniting ₈₀₂₁, igniting shutoff signal S ₈₀₂₃, the output signal of the detection unit 701 of advancing and the output signal of throttle sensor 257 are determined the connection/cut-out of buzzer 175, at the signal of the occasion of connecting to buzzer drive portion 814 output " H " level.

Buzzer control device 805, as shown in Figure 15, if manner of execution is " start mode " then buzzer 175 is cut off all the time.In " stopping the 1st scheme of the mode of starting to walk ", if not taking a seat under the igniting dissengaged positions continued more than the out-of-date time (being 1 second in the present embodiment) of timer 8012, the dissengaged positions of perhaps lighting a fire continued more than the out-of-date time (being 3 minutes in the present embodiment) of timer 8021, then made buzzer 175 for connecting.In " stopping the 2nd scheme of the mode of starting to walk ", when not igniting (igniting is cut off), if according to the input signal accelerator open degree from throttle sensor 257 is " 0 ", and the detection unit 701 of advancing then makes buzzer 175 for connecting according to judging that from the input signal of vehicle speed sensor 255 speed of a motor vehicle is 0km.In " Idle Switch mode ", if cutting off and do not take a seat, igniting continues more than 1 second, then making buzzer is connection.Buzzer drive portion 814 is if the output signal of buzzer control device 805 becomes " H " level, then to the buzzer 175 output buzzer drive signal of the cut-out of 0.2 second connection and 1.5 seconds repeatedly.

So, in the buzzer control of present embodiment, in advancing by " stopping the starting mode ", if for example the one-sided traffic control that causes of road construction etc. makes Headlamps point light yellow long-time (in the present embodiment above 3 minutes) parkings (motor stops) by force, then the action scheme that " stops the starting mode " switches to " the 2nd scheme " from " the 1st scheme ", simultaneously by means of 175 advisory drivers that allow idling of buzzer.Thereby the driver just can prevent to continue for a long time to light the exhaustion of the accumulators that Headlamps 169 produces as long as in response to buzzer starter switch 258 is dropped into.

In the acceleration operation detection part 502 of charging control section 500, according to from the input signal of throttle sensor 257 with from the input signal of vehicle speed sensor 255, if the speed of a motor vehicle is greater than 0 kilometer, and throttle is opened to the time of full-gear from full-shut position, for for example in 0.3 second, then think and quickening operation and produce one and quicken the operation detection pulse.

Driveaway operation detection unit 503 if throttle is " opening " when engine speed is lower than the setting rotating speed (being 2500rpm in the present embodiment) of regulation under 0 kilometer of the speed of a motor vehicle, is then thought and has been carried out driveaway operation and produce a driveaway operation and detect pulse.Charging limitation part 504 if detect aforementioned acceleration detection pulse signal then start 6 seconds timer 504a, finishes up to this 6 seconds timer 504a times, and controlled adjuster rectifier 167 is reduced to 12.0V to the charging voltage of storage battery 168 from ordinary times 14.5V.

If with above-mentioned charging control, then the driver sharply opens throttle and carries out urgency when quickening, or when halted state starts to walk, the charging voltage reduction, the electrical load of actuating and generating device 250 temporarily reduces.Thereby the mechanical load of the motor 200 that is brought by actuating and generating device 250 also reduces and acceleration performance improves.In addition, if when motor stops automatically, switching elements such as FET are carried out copped wave control and the Headlamps dim light, the discharge of storage battery are suppressed to bottom line, so then become possibility because the load of actuating and generating device 250 further reduces further raising of acceleration performance.

Moreover, charging limitation part 504, as shown in Figure 15, if 6 seconds timer 504a time finished, engine speed surpass to be set rotating speed (be 7000rpm in the present embodiment), and perhaps accelerator open degree reduces, and then stops to charge control and makes charging voltage recovery 14.5V at ordinary times.

In Figure 14, cranking-motor relay control device 400, according to aforementioned each manner of execution or action scheme, starter relay 162 under defined terms.The testing signal of Ne sensor 153 is supplied with to the following detection unit 401 of idling.If engine speed is lower than the idling speed (for example 800rpm) of regulation then the following detection unit 401 of idling is exported the signal of " H " level.The logic product of the state signal of the output signal of the following detection unit 401 of ' with ' circuit 402 output idling, the state signal of stop switch 259 and starter switch 258.The logic product of the state signal of output signal, the testing signal of throttle sensor 257 and the switch 254 of taking a seat of the following detection unit 401 of ' with ' circuit 404 output idling.The logic of the output signal of aforementioned each ' with ' circuit 402,404 of ' or ' circuit 408 outputs and.

' or ' circuit 409 output action mode signal S _301cWith manner of execution signal S _301aEnergizing signal logic and.The logic product of the output signal of the output signal of ' with ' circuit 403 outputs ' with ' circuit 402 and ' or ' circuit 409.Output signal, the aforementioned activities mode signal S of ' with ' circuit 405 outputs aforementioned ' with ' circuit 404 _301a, and aforementioned activities scheme signal S _301bThe logic product of energizing signal.' with ' circuit 407 output aforementioned activities mode signal S _301a, action scheme signal S _301bThe logic product of the output signal of ' or ' circuit 408.' or ' circuit 406 to the logic of aforementioned each ' with ' circuit 403,405,407 of cranking-motor relay 162 outputs and.

If with the control of this cranking-motor relay, then level ' with ' circuit 403 becomes initiate mode because the output signal of ' or ' circuit 409 is " H " in " start mode " and " Idle Switch mode ".Thereby, if in engine speed is below the idling, and stop switch 259 output that starter switch 258 is connected ' with ' circuit 402 by the driver during for on-state (break is operated) becomes " H " level, then cranking-motor relay 162 conductings and starter motor 171 is started.

In addition, in " stopping the 1st scheme of the mode of starting to walk ", ' with ' circuit 405 becomes initiate mode.Thereby, if engine speed is below the idling, the switch 254 of taking a seat is opened for on-state (driver is being seated to the seat) throttle, and then the output of ' with ' circuit 404 becomes " H " level, cranking-motor relay 162 conductings and starter motor 171 is started.

And then in " stopping the 2nd scheme of the mode of starting to walk ", ' with ' circuit 407 becomes initiate mode.Thereby, if some becoming " H " level in aforementioned each ' with ' circuit 402,404, then cranking-motor relay 162 conductings and starter motor 171 is started.

Crank shaft angle control device 1000 when stopping, when motor stopped, the chien shih motor stopped at the crank angle position of wanting when making starter motor 171 reverses predefined.Stop to judge that timer 1001 monitors Ne sensor 153, output time end signal (" H " level) when not having the state continuance scheduled time Tx of output from Ne sensor 153.This time end signal represents that motor stops.The time end signal that stops to judge timer 1001 is input to ' with ' circuit 1002, ' with ' circuit 1007 and reverses permission timer 1004.

Reverse permission timer 1004 in response to from stopping to judge that the time end signal of timer 1001 keeps output signal " H " level till time T y in the past.Time T y is according to the testing signal of the cooling-water temperature sensor 155 of the water temperature of detection of engine cooling water, and water temperature is high more then selects the short more time.The relation of time T y and water temperature is addressed at Figure 18 hereinafter.

In comparing section 1003, set the reference rotation speed Nref that is higher than starting speed and is lower than idling speed for, compare with engine speed Ne based on the output of Ne sensor 153.The signal " L " that output expression engine condition is connected when engine speed Ne is higher than reference rotation speed Nref.In addition, the signal " H " that output expression engine condition is cut off when engine speed Ne is lower than reference rotation speed Nref.Signal from comparing section 1003 is input to ' with ' circuit 1002.

' with ' circuit 1002 and the output signal that reverses permission timer 1004, and the testing signal of cam sensor 155 is input to ' with ' circuit 1005, the logic of ' with ' circuit 1005 these output signals of output and, this logic and in inverter 1006, be reversed and supply to and reverse relay 162a.

And then, reverse the output signal of permitting timer 1004, be input to ' with ' circuit 1007.The opposing party's of ' with ' circuit 1007 input connects the time end signal that stops to judge timer 1001.The output of ' with ' circuit 1007 is input to cranking-motor relay control device 400 ' or ' circuit 406.Moreover the action of this crank shaft angle when stopping control device 1000 is hereinafter further addressed.

In secondary starter motor control device 900, be input to Ne detection unit 901 from the output signal of Ne sensor 153.The signal of this Ne detection unit 901 output " H " level if engine speed surpasses predetermined value and secondary cranking-motor relay 164 closures.If with such formation, then in any manner of execution, can be when engine speed surpasses predetermined value enriching fuel.

In tutorial light control device 600, be input to Ne detection unit 601 from the output signal of Ne sensor 153, the signal of Ne detection unit 601 output " H " level if engine speed surpasses predetermined value.The take a seat logic product of output signal of the state signal of switch 254 and Ne detection unit 601 of ' with ' circuit 602 outputs.' with ' circuit 603 outputs to ready light 256 to the logic product of the energizing signal of output signal, aforementioned activities mode signal S301a and the action scheme signal S301b of ' with ' circuit 602.Ready light 256 extinguishes when input signal is " L " level, and is glittering when being " H " level.

That is to say that because glittering during the parking of ready light 256 in " stopping the starting mode ", ready light 256 is just glittering so the driver can recognize, even as long as then motor stops also to open throttle and just can start to walk immediately.

Explain when starting below and the control of the starter motor 171 when stopping.In the motor of present embodiment, during engine start, bent axle was once being reversed after the little position of load torque when just changeing, change into and drive starter motor along positive veer and make engine start., only depend on to make starter motor reverse certain hour, because the difference of the spin friction of motor can't begin from the crankshaft angles of wanting just to change.Therefore, as just Figure 14 explanation, when being formed in vehicle and stopping, chien shih starter motor 171 reverses during by the reverse determined according to the output of cooling-water temperature sensor 155.Whereby, during starting once more when once stopping, can avoid the influence of load torque and starting starting immediately.

The figure of the relation of required torque when the crank angle position when Figure 17 is 171 startings of expression starter motor is just crossed over upper dead center with the leap torque.In the figure, the scope of 450 °～630 ° of crank angle positions in the front of compression top dead center C/T just in the scope (low loading range) of 90 °～270 ° of the fronts of exhaust top dead center O/T the leap torque little.On the other hand, cross over torque in 90 °～450 ° the scope (high capacity scope) in the front of compression top dead center C/T big, and particularly locating to cross over torque for 180 ° in the front of compression top dead center C/T becomes maximum.That is to say, big in the leap torque of the front of compression top dead center C/T substantially, little in the leap torque of the front of exhaust top dead center substantially.

Therefore, in the present embodiment,, determine the energy supply time like this, promptly allow bent axle 12 stop in the aforementioned low loading range in the occasion of giving the starter motor energy supply along the reverse direction of bent axle 12.If so make bent axle 12 reverse low loading range, begin from this position to give starter motor 171 energy supplies along positive veer, then can cross over compression top dead center C/T with little leap torque.

, when motor was stopped, bent axle did not often stop near the compression top dead center C/T (in reverse direction one side from the compression top dead center C/T scope about 140 ° to the front) (implementing the scope of hunting).Therefore, make crank angle position from the front of compression top dead center C/T about 140 ° of front ends that change to aforementioned low loading range, just the starter motor energy supply is given along reverse direction in the front of exhaust top dead center O/T in about 90 ° of needed times.

Particularly, rotate the needed time between compression top dead center C/T and exhaust top dead center O/T if reverse above bent axle 12, just surpass the time that crank angle position changes 360 °, then no matter when reversing beginning bent axle 12 where be in, reverse the crank angle position after surpassing 360 °, be included in the front of exhaust top dead center O/T, in the just low loading range.

Figure 18 is the figure of relation of the coolant water temperature of expression reverse time of starter motor 171 and motor, and the longitudinal axis represents to reverse time T y (second), and transverse axis is represented water temperature.Solid line illustrates time (the 1st time) Ty1 when being applicable to the starting that starter switch 258 produces among the figure, time (the 2nd time) Ty2 when dot and dash line illustrates the output that is applicable to according to throttle sensor 257 and detects driveaway operation motor is started once more.These the 1st times and the 2nd time are just measured at spin friction at the coolant water temperature of motor bent axle 360 ° of needed times of reverse are determined.Moreover the value less than the leap torque of compression top dead center C/T is set in the rotating speed and the torque of the starter motor 171 during reverse for.

The 1st time is different with the 2nd time, is the degree difference that makes warming-up because of starting form separately, because this degree, even the also different cause of the identical spin friction of the coolant water temperature of motor.Because by means of the occasion of starter switch 258 initial start-ups, detect the occasion that driveaway operation starts motor once more with output and compare according to throttle sensor 257, warming-up is insufficient and friction is big, thus reverse time lengthening (Ty1＞Ty2).

Moreover engine coolant temperature is high more, and spin friction just is more little, and then the 1st time is more little to the ratio of the 2nd time.This is that spin friction diminishes because if water temperature uprises, then not during the initial start-up of warming-up, and the little cause of amounts of rotation difference of the bent axle 12 that the reverse time produces when starting once more fully with warming-up.

Below, the formation of the action of the starter motor 171 when being used for motor stops to be described.Fig. 1 is the just reverse circuit of starter motor 171.In Fig. 1, if crank shaft angle control device 1000 is judged into motor according to the testing signal of Ne sensor 153 and is stopped when stopping, then cranking-motor relay 162 (hereinafter referred to as " relay R yA ") is connected, simultaneously reverse relay 162a (hereinafter referred to as " relay R yB ") is cut off.This relay switching state is as keeping at Figure 14 explanation according to determined time T y1 of water temperature testing result or time T y2 as the cooling-water temperature sensor 155 of the feeler mechanism of friction.In addition, the connection shutoff signal of input starter switch 258 and stop switch 259 etc. in cranking-motor relay 400 is if satisfy starting conditions then relay R yA is cut off.

On the other hand, starter motor 171 is connected to the contact R ya of relay R yA via the 1st contact R yb1 of relay R yB, simultaneously the contact R ya that is connected to relay R yA via the 2nd contact R yb2 and the resistance R of relay R yB.The other end of the contact R ya of relay R yA is connected to the plus end of storage battery 168, and then what the negative terminal of storage battery 168 was connected to normally closed (NC) side of aforementioned the 1st contact R yb1 and Ryb2 often opens (NO) side.

In this formation, connect at relay R yB, the occasion that relay R yA cuts off, electric current flows to starter motor 171 and motor 171 reverses along arrow RR direction.That is to say that after motor stopped, bent axle 12 reversed process and corresponding time T y1 of engine coolant temperature or time T y2.On the other hand, connect at relay R yA, the occasion that relay R yB connects, the 1st and the 2nd contact R yb1, Ryb2 switches to illustrate an opposite side, and electric current flows to starter motor 171 and starter motor 171 is just being changeed along arrow RF direction.Do not give starter motor 171 power supplies when relay R yA cuts off, bent axle 12 does not rotate.

Moreover starter motor 171 for weight reduction and miniaturization, is used little torque motor, is advance angle when just changeing and increases torque.Thereby, during reverse because become retardation angle so torque only has 1/2 to 1/3 of torque when just changeing.And then in the occasion that reverses, because make current flowing resistance R, so the occasion that current ratio is just being changeed is restricted, so much lower when rotating ratio is just changeing during reverse for the purpose of protective relay contact.By means of these effects of mutually promoting, if, the initial position of reversing is near aforementioned low loading range, perhaps entered low loading range, even allow bent axle reverse compression top dead center C/T, can not cross over this compression top dead center C/T yet and reverse undesirable crank angle position, need the position of big load torque when crossing over compression top dead center C/T when just just changeing.Thereby even crank angle position reaches near the compression top dead center C/T when reverse finishing, bent axle also rotates from compression top dead center C/T along positive veer and stops when stopping to switch on.

Next, the flow diagram with reference to Figure 19 illustrates above-mentioned control.Processing shown in this flow diagram, main switch 173 is carried out once being switched on operation, if starter switch 258 connections, and stop switch 259 cut-outs, starting control then begun.At first, in step S1, come the detection of engine coolant water temperature by means of the output of cooling-water temperature sensor 155.In step S2, the corresponding reverse time T of the aforementioned water temperature y1 that from aforementioned table (with reference to Figure 18), reads and detect.In step S3, relay R yA is connected, make the hold time timer T1 starting of Ty1 of this on-state.At this moment, because relay R yB cut-out, so bent axle 12 reverses.

In step S4, judge whether timer T1 reaches time T y1, if this one is judged as certainly then enters step S5.In step S5, relay R yB is connected and the just commentaries on classics of beginning bent axle.Meanwhile timer T1 zero clearing.Judge in step S6 whether starter switch 258 cuts off, if the driver cuts off starter switch 258, then this one is judged to be certainly and enters step S7.

In step S7, relay R yA is cut off, in step S8, make timer Tp starting.Whether the value of judging timer Tp in step S9 has passed through the time t1 that the contact protection of relay R yB is used.If passed through time t1 then in step S10, relay R yB cut off.In step S11, timer Tp is resetted.

If starting control finishes, then differentiate following control kind (step S12), control separately, IGNITION CONTROL (step S13) just, charging control (step S14), Headlamps control (step S15), and buzzer control (step S16) etc. is by repeatedly and vehicle continues to advance.In advancing, if predetermined condition is set up, then enter step S1 in order to start control, perhaps carry out the transition to motor and stop control (addressing in detail hereinafter).

Below, the processing that motor stops to control is described.In the flow diagram of Figure 20, the output by means of cooling-water temperature sensor 155 in step S21 comes the detection of engine cooling water temperature.In step S22, the corresponding reverse time T of the aforementioned water temperature y2 that from aforementioned table (with reference to Figure 18), reads and detect.In step S23, relay R yA is connected, be used in the hold time timer T2 starting of Ty2 of this on-state.At this moment, because relay R yB cut-out, so bent axle 12 reverses.

In step S24, judge whether timer T2 reaches time T y2, if this one is judged as certainly then enters step S25.In step S25 timer T2 zero clearing.In step S26, relay R yA is cut off.If relay R yA cuts off, then starter motor 171 stops.

Whether the engine start condition is set up in step S27, if just starter switch 258 is connected, and stop switch 259 is connected the establishment of then engine start condition.If the engine start condition is set up, then enter step S28 and relay R yB is connected.By relay R yB is connected, that is just changeing is ready to complete.In step S29, make timer Tp starting.Whether the value of judging timer Tp in step S30 has passed through the time t1 that the contact protection of relay R yB is used.If passed through time t1 then in step S31, timer Tp is resetted, in step S32, relay R yA is connected.Bent axle 12 begins rotation whereby.Because relay R yB becomes connection in step S28, so the sense of rotation of bent axle 12 is positive veer.In step S33, differentiate motor and whether start, if engine start enter step S7 (Figure 19).

In the occasion of step S33 for negating, though just in advance bent axle 12 is reversed, but the occasion of failing to start as motor by turn after this, in step S34, relay R yA is cut off and starter motor 171 was once being stopped, in order to reverse, in step S35, relay R yB is cut off.In step S36, relay R yA is connected, make the hold time timer T1 starting of Ty1 of this on-state.In time T y1, bent axle 12 reverses.

In step S37, judge whether timer T1 reaches time T y1, if this one is judged as certainly then enters step S38.In step S38, relay R yB is connected and the just commentaries on classics of beginning bent axle.Meanwhile timer T1 zero clearing.In step S39, judge whether motor starts, if engine start enter step S7.

In this wise, make after the starter motor reverse, it is just being changeed when also failing to pilot engine,, make immediately after bent axle 12 reverses, it is just changeed no matter where crank angle position is in.

In the present embodiment, adopt cooling water temperature to become the parameter of friction of the load of bent axle 12 as representative, but the parameter of determining the reverse time is not limited to this.For example, the mechanism of the temperature that detects machine oil can be set also, determine the reverse time according to this temperature.

As above detailed description,,, may be controlled to when just changeing the position that to start with little load torque from this position no matter the size of spin friction then reverses bent axle and the crank angle position when stopping if with the invention of technological scheme 1～6.Particularly, still be in the position that is difficult to start, just can carry out above-mentioned control, so for example do not need cam pulses generator etc., the parts that the detection crank angle position is used owing to need not judge the position that crankshaft angles is in easy starting.Thereby, can realize motor weight reduction, miniaturization, reduce cost.

Owing to can set the reverse time, so reverse time can shorten warming-up time the and realize quick startability according to the warming-up degree of motor.Particularly, occasion in the control that motor is started once more, can not only shorten the starting time before, but also can realize the shortening of current"on"time, can reduce power loss by getting the appropriate reverse time.

Claims (6)

1. engine starting method makes after bent axle reversed the predetermined reverse time, just makes it then pilots engine, it is characterized in that,

The aforementioned reverse time, set according to the spin friction of motor, set longly in the big occasion of this spin friction, set shortly in the little occasion of this spin friction.

2. engine starting method as claimed in claim 1 is characterized in that, represents aforementioned spin friction with engine temperature, must lack aforementioned reverse time set when engine temperature is high, must grow aforementioned reverse time set when engine temperature is low.

3. engine starting method as claimed in claim 1 or 2 is characterized in that, aforementioned reverse time set becomes to surpass when predetermined engine revolution friction, and bent axle turns over the time required between compression top dead center and exhaust top dead center.

4. the engine starting method described in the claim 1～3 any one is characterized in that,

Motor is stopped, the driveaway operation that carries out in response to the driver and motor is started once more,

Aforementioned reverse time during the starting once more of this motor, set the reverse time when being shorter than first engine start for.

5. the engine starting method described in the claim 1～4 any one is characterized in that, the ratio of the aforementioned reverse time of the aforementioned reverse time during first engine start when starting once more, and it is more little then big more to set aforementioned spin friction for.

6. the engine starting method described in the claim 1～5 any one is characterized in that, the torque the during reverse of aforementioned bent axle is set for less than crossing over the required torque of compression top dead center.

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