CN100400826C - Control system of electronic throttle valve and motorcycle - Google Patents
Control system of electronic throttle valve and motorcycle Download PDFInfo
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- CN100400826C CN100400826C CNB200480033363XA CN200480033363A CN100400826C CN 100400826 C CN100400826 C CN 100400826C CN B200480033363X A CNB200480033363X A CN B200480033363XA CN 200480033363 A CN200480033363 A CN 200480033363A CN 100400826 C CN100400826 C CN 100400826C
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Abstract
A control system of an electronic throttle valve, capable of restricting rapid turning of a throttle valve when an abnormality occurs in a control system. The control system comprises a throttle valve (10) for regulating an intake air amount of an internal combustion engine, an electric motor (20) for driving the throttle valve (10), and a control section (21) for controlling the motor (20). The throttle valve (10) has a mechanism (30) for urging the throttle valve (10) in the closing direction. The motor (20) is brought into a regeneration state upon occurrence of an abnormality in the control system of the electronic throttle valve. This causes the control section (21) to control the turning speed in the closing direction of the throttle valve (10) by an urging force from the urging mechanism (30). Consequently, the throttle valve (10) is turned slowly in the closing direction by the urging force from the urging mechanism (30), and then held at a specified opening position (10b).
Description
Technical field
The present invention relates to a kind of control system of electronic throttle valve, more specifically, relate to a kind of control system of electronic throttle valve of preparing for the system failure (losing efficacy, unusual).
Background technique
The aperture that is used for controlling electronically closure can reduce discharging and fuel consumption with the electronic throttle system of the air inflow that is adjusted to motor (internal-combustion engine), and has been used for some four-wheel motor vehicle.
This electronic throttle system has such function, that is, when control system broke down, this function stop was by the actuating of motor to closure, and utilized the active force of spring to make closure return to complete closed position.Be in a kind of like this state thereby keep motor, that is, can carry out failure operation and vehicle traction to a position.
Even thereby when being provided with bypass line and when the active force of closure by spring returns to complete closed position, still can allowing air in certain amount to enter motor, can keep motor and be in the state that can carry out failure operation (failure operation).
When control system broke down, closure was very fast along the speed that closing direction rotates by the active force of spring.Therefore, the output of motor reduces rapidly.Under the situation of four-wheel passenger vehicle, because the weight of vehicle is very big, even motor output reduces rapidly, the driver can not feel the variation of vehicle feature (operating mode) yet.Yet under the situation of the very little two-wheeled motor vehicle of weight, the driver can feel the variation of vehicle feature.
Patent documentation 2 discloses a kind of like this method, and this method is by applying resistance to prevent closure (sharply) rotation and close the throttle lentamente fast to the rotation that acts on closure along closing direction by spring.Thereby can avoid motor output to reduce rapidly, even and vehicle when bottom gear travels, can not do ballistic kick motion (jolting) yet.Use the electronic buffer that adopts the electroviscosity fluid as the device (damping mechanism) that is used for applying resistance to the rotation of closure.
Patent documentation 3 discloses the example that electronic throttle system is applied to two-wheeled motor vehicle.
Patent documentation 1:JP-A-2003-201866
Patent documentation 2:JP-A-puts down-6-248979
Patent documentation 3:JP-A-2002-106368
Summary of the invention
Although disclosed method can prevent aspect the closure quick rotation very excellently in the patent documentation 2, be used for the throttle plate pin that device that rotation to closure applies resistance must be installed to closure.In addition, when using the electroviscosity fluid buffer, must provide when control system breaks down and apply electric field to increase the device of viscous force to the electroviscosity fluid as damping device.
Yet under the situation of two-wheeled motor vehicle, owing to be different from four-wheel motor vehicle, available holding space is limited, therefore is difficult to install the sort buffer device physically.In addition, when the electronic buffer that uses such as the electroviscosity fluid buffer, also must control electronic buffer itself explicitly with the control system that breaks down.The problem that this causes control system complexity and cost to increase.
Propose the present invention in view of above-mentioned aspect, therefore, the purpose of this invention is to provide a kind of control system of electronic throttle valve, this system does not need extra holding space and can prevent the closure quick rotation when control system breaks down.
According to the present invention, a kind of control system of electronic throttle valve has: the closure that is used for the air inflow of controlling combustion engine; Be used to drive the motor of described closure; And the control device that is used to control described motor; It is characterized in that: described closure has the force application mechanism that is used for acting on along closing direction described closure; And when described control system broke down, described control device was converted to regeneration mode with described motor, to control the speed that described closure rotates along closing direction by the active force of described force application mechanism.
In a preferred embodiment, when this control system broke down, described closure rotated along closing direction by the active force of described force application mechanism, remained on predetermined aperture position then.
According to the present invention, another kind of control system of electronic throttle valve has: the closure that is used for the air inflow of controlling combustion engine; Be used to drive the motor of described closure; And the control device that is used to control described motor; It is characterized in that described closure has: first force application mechanism that is used for acting on described closure along closing direction; And be used for along opening second force application mechanism of directive effect in described closure, and when described control system breaks down, described control device is converted to regeneration mode with described motor, to control described closure by the relativity power of described first force application mechanism and described second force application mechanism along closing direction or open the speed that direction is rotated.
In a preferred embodiment, when this control system broke down, the relativity power of described closure by described first force application mechanism and described second force application mechanism was along closing direction or open direction and rotate, and remained on predetermined aperture position then.
Preferably, when described closure remained on described predetermined aperture position, described internal-combustion engine maintained the state that can carry out failure operation.
According to the present invention, another kind of control system of electronic throttle valve has: the closure that is used for the air inflow of controlling combustion engine; Be used to drive the motor of described closure; And the control device that is used to control described motor; It is characterized in that: when this control system broke down, described control device was converted to regeneration mode with described motor, to control the rotation of described closure.
In a preferred embodiment, when this control system broke down, described closure remained on its residing aperture position this moment.
In a preferred embodiment, when this control system broke down, described control device cut off from the electric power of power supply to described motor, then described motor is converted to regeneration mode.
In a preferred embodiment, described force application mechanism is made of the mechanism with spring.
In a preferred embodiment, described control system of electronic throttle valve also comprises the throttle control that is used for the described closure of manual drives, thereby can rotate described closure along closing direction when this control system breaks down.
Two-wheeled motor vehicle according to the present invention is characterised in that and comprises above-mentioned control system of electronic throttle valve.
According to control system of electronic throttle valve of the present invention, when control system broke down, the motor that is used to activate closure was switched to regeneration mode, thereby can apply resistance and reduce the rotating speed of closure to the closure that rotates by active force.Therefore, can prevent the closure quick rotation.Owing to during normal condition, use motor as the driving source that is used to open and close closure, do not need to provide the only additional mechanism of start when control system breaks down.In addition, can by between two terminals of motor, form short circuit with motor as generator, thereby easily motor is transformed into regeneration mode.Therefore, do not need extra holding space, and when control system of electronic throttle valve breaks down, can prevent the quick rotation of closure by simple control.
When being provided for acting on first force application mechanism of closure and be used for when opening directive effect in second force application mechanism of closure along closing direction, closure can be remained on the well-determined aperture of relativity power position, therefore when control system breaks down, internal-combustion engine can be maintained the state that can carry out optimum failure operation by first force application mechanism and second force application mechanism.
Even without force application mechanism is set, also can be when control system breaks down closure be remained on its residing aperture position this moment by motor is transformed into regeneration mode.Therefore, the driver can not feel the unexpected variation of vehicle feature.
Description of drawings
Fig. 1 is the view that illustrates according to the structure of control system of electronic throttle valve of the present invention;
Fig. 2 is the sectional view that the aperture position of the closure among the present invention is shown;
Fig. 3 is the aperture time history plot that closure among the present invention is shown;
Fig. 4 (a) is illustrated in the state of motor control circuit between the positive refunding, and Fig. 4 (b) illustrates the state of control circuit during the motor counter-rotating, and Fig. 4 (c) illustrates the state of control circuit during the regeneration mode of motor;
Fig. 5 is the view that illustrates according to the another kind structure of control system of electronic throttle valve of the present invention;
Fig. 6 (a) and 6 (b) are the sectional views that the aperture position of the closure among the present invention is shown;
Fig. 7 (a) and 7 (b) are the aperture time history plots that closure among the present invention is shown;
Fig. 8 is the view that illustrates according to the another kind structure of control system of electronic throttle valve of the present invention;
Fig. 9 is the view that illustrates according to the structure of closure of the present invention and motor;
Figure 10 is the sectional view of being got along the line X-X among Fig. 9;
Figure 11 is the sectional view of the throttle control among the present invention;
Figure 12 is the left view of the two-wheeled motor vehicle among the present invention;
Figure 13 is the enlarged left view of the engine unit among the present invention;
Figure 14 is the amplification right elevation of the engine unit among the present invention;
Figure 15 is the view that the structure of the throttle mechanisms among the present invention is shown;
Figure 16 is the view of structure that the control system of the two-wheeled motor vehicle among the present invention is shown;
Figure 17 is the view that the structure of the control unit among the present invention is shown;
Figure 18 is the view that the another kind structure of the control unit among the present invention is shown;
Figure 19 is the view that the structure of the control circuit that is used for motor among the present invention is shown.
Description of reference numerals:
10: closure
11: throttle body
12: throttle plate pin
20: motor
21: control device
22: speed changer
30: the first force application mechanisms
31: the second force application mechanisms
40: actuation gear
41: gear broad in the middle
42: intermediate speed pinion
43: the throttle plate pin actuation gear
44: the closure handle
45: carburetor cable
46: intermediate pulley
47: transmission part
48: free arm
49: link plate (link plate)
50: pin
60: housing
101: two-wheeled motor vehicle
107: engine unit
110: steering handle
122: speed changer
127: clutch motor
128: the gear shift actuating mechanism
140: throttle mechanisms
141: throttle body
142: closure
142a: throttle plate pin
142b: valve plate
143a: motor
143b: actuation gear
143c: gear broad in the middle
143d: intermediate speed pinion
143e: throttle plate pin actuation gear
143f: housing
144: engine load sensor
145: free arm
146: link plate
147: intermediate pulley
148: carburetor cable
149: the closure handle
150: closure handle jaw opening sensor
151: Fuelinjection nozzle
152: fuel feed pipe
160: throttle control
170: clutch
200: control unit
201: clutch position sensor
205: Gear-shift switch
301,302,303,304: input circlult
306,307: drive circuit
308,309: the output monitoring circuit
310,311: the motor power-down circuit
400: relay circuit
Embodiment
Electronic throttle system is being favourable aspect reduction discharging and the fuel consumption, but must possess the function of start when control system of electronic throttle valve breaks down.Yet, when the function that is used for four-wheel motor vehicle is applied to two-wheeled motor vehicle, the driver of two-wheeled motor vehicle can feel the unexpected variation of the vehicle feature that the driver of four-wheel motor vehicle can not feel, this is because the weight ratio four-wheel motor vehicle of two-wheeled motor vehicle in light weight.
This unexpected variation of vehicle feature is because the unexpected rotation of closure causes.For the rotation that prevents that this closure is unexpected, should additionally install as disclosed damping device in the patent documentation 2.Yet, in two-wheeled motor vehicle, be difficult to provide the space that the sort buffer device is installed.
The present inventor considers that being limited in of holding space is applied to the obstruction that causes in the two-wheeled motor vehicle with electronic throttle system.As about how providing and need not to increase the result of the research of holding space, finished the present invention to the damping device of control system of electronic throttle valve.
With reference to Fig. 1 and Fig. 2 control system of electronic throttle valve of the present invention is described below.The present invention is not limited to the following examples.
Fig. 1 is the view of essential structure that schematically shows an embodiment of control system of electronic throttle valve.The closure 10 that is used to control to the air inflow of internal-combustion engine (not shown) is arranged in the throttle body 11, and throttle plate pin 12 is connected to the motor 20 that is used to activate closure 10.The forward and backward of control device 21 control motor 20, thus closure 10 is opened and closed.Closure 10 has the force application mechanism 30 that is used for acting on along closing direction closure 10.When control system broke down, control device 21 was transformed into regeneration mode with motor 20, controlled the speed that closure 10 rotates along closing direction with the active force by force application mechanism 30.That is, the motor in the regeneration mode is as the damping device that prevents the closure quick rotation.
Fig. 2 illustrates when the direction of the throttle plate pin 12 that is parallel to closure 10 is seen the sectional view of the aperture position of closure 10 throttle body 11.In Fig. 2, solid line is illustrated in the aperture position 10a of closure 10 between error-free running period.When control system broke down, closure 10 remained on the predetermined aperture position 10b that is illustrated by the broken lines by the active force of force application mechanism 30 then along closing direction (direction shown in the arrow) rotation.
The active force of force application mechanism 30 is adjusted to and makes that the aperture of closure 10 is enough for internal-combustion engine being maintained the state that can carry out failure operation at the predetermined aperture position 10b shown in Fig. 2.Can use spring etc. as force application mechanism 30.Even being in the state that can carry out failure operation, internal-combustion engine is meant the state that still vehicle can be driven at least a position such as roadside when internal-combustion engine is in the electronic control that loses electronic throttle system.It comprises idle state.
Fig. 3 illustrates to work as closure 10 from the aperture θ constantly that breaks down when control system
1Rotated position to predetermined aperture θ
0The process of position in the plotted curve of aperture time to time change of closure 10.
According to control system of electronic throttle valve of the present invention, even when control system breaks down, closure can quick rotation yet.Therefore, the driver of two-wheeled motor vehicle can not feel the unexpected variation of vehicle feature.
Although closure rotates and remains on predetermined aperture position along closing direction when control system breaks down in this embodiment, when internal-combustion engine can otherwise maintain can carry out the state of failure operation the time, also closure can be turned to complete closed position.For example, thus when in throttle body, being provided with bypass line separately and when control system breaks down, can introducing air in certain amount in the internal-combustion engine, internal-combustion engine can be maintained the state that can carry out failure operation by this bypass line.Under the situation of two-wheeled motor vehicle, to such an extent as to, do not need to provide this bypass line when the driver also can push away its walking when even the so light closure of motorcycle is closed fully.
The control circuit that is used for when control system breaks down motor 20 being transformed into reproduced state is described below with reference to Fig. 4 (a) to Fig. 4 (c).
To shown in Fig. 4 (c), this control circuit is made of the H bridge circuit with four transistor FET1 to FET4 as Fig. 4 (a).Fig. 4 (a) illustrates the control circuit when motor 20 is just changeing.When transistor FET1 and FET4 conducting (ON) and transistor FET2 and FET3 when turn-offing (OFF), electric current flows as shown by arrows.Fig. 4 (b) illustrates the control circuit when motor 20 counter-rotatings.When transistor FET2 and FET3 conducting and transistor FET1 and FET4 when turn-offing, electric current flows as shown by arrows.By changing the direction that electric current flows through motor 20, the sense of rotation of motor 20 changes, thereby control closure 10 opens or closes.
Fig. 4 (c) illustrates the control circuit when motor 20 is in regeneration mode.When transistor FET1 and FET2 conducting and transistor FET3 and FET4 when turn-offing, electric current flows as shown by arrows.At this moment, motor 20 is as generator.Thereby, produce inverse electromotive force and produce rightabout electric current.By this electric current, produce along with the moment of the direction of the direction of rotation of motor 20, this moment is as the braking (moment) of the rotation that slows down motor 20.Can turn-on transistor FET3 and FET4 be transformed into regeneration mode with motor 20 by turn-offing transistor FET1 and FET2.When motor 20 is transformed into regeneration mode, preferably, cut off the power supply that is connected to motor.
Function among the start by motor 20 is transformed into regeneration mode (trigger, activate) the present invention can use the control circuit of the normal running that is used to control motor 20 to control this operation.Promptly, since can use the motor 20 that is used for activating closure 10 as the damping device that is used to prevent closure 10 quick rotation, and the control circuit that is used to control the clockwise and anticlockwise of motor 20 realize the present invention's function as the device that is used to control this damping device, do not need to provide the control system of electronic throttle valve of any additional mechanism providing additional operation or routine.
As mentioned above,, do not need extra holding space, and when control system of electronic throttle valve breaks down, can prevent the quick rotation of closure by simple control according to control system of electronic throttle valve of the present invention.Therefore, the driver of two-wheeled motor vehicle can not feel the unexpected variation of vehicle feature.
Especially under the situation of two-wheeled motor vehicle, for being provided with closure and described closure, each cylinder is positioned near the firing chamber, therefore, the quick rotation of closure causes the output of internal-combustion engine to reduce fast, thereby the driver can feel the unexpected variation of vehicle feature.Therefore, the present invention is useful for being applied to two-wheeled motor vehicle.
Fig. 5 is the view of essential structure that schematically shows another embodiment of control system of electronic throttle valve of the present invention.This embodiment and difference embodiment illustrated in fig. 1 are to have two force application mechanisms.That is, closure 10 has and is used for acting on first force application mechanism 30 of closure 10 and being used for along opening second force application mechanism 31 of directive effect in closure 10 along closing direction.When control system broke down, control device 21 was transformed into regeneration mode with motor 20, controlled the speed that closure 10 rotates along closing direction with the relativity power by first force application mechanism 30 and second force application mechanism 31.
Fig. 6 (a) and Fig. 6 (b) illustrate when when the direction of the throttle plate pin 12 that is parallel to closure 10 is seen the sectional view of the aperture position of closure 10 in the throttle body 11.In Fig. 6 (a), solid line is illustrated in the aperture position 10a of closure 10 between error-free running period.When control system broke down, closure 10 rotated along closing direction (direction shown in the arrow) by the relativity power of first force application mechanism 30 and second force application mechanism 31 and remains on the predetermined aperture position 10b that is illustrated by the broken lines then.
The predetermined aperture position 10b that is illustrated by the broken lines determines uniquely according to the relativity power (size) of first force application mechanism 30 and second force application mechanism 31.The aperture of closure 10 is adjusted to enough big so that internal-combustion engine is maintained and can be scheduled to the state that aperture position 10b carry out failure operation.When closure 10 only had a force application mechanism, predetermined aperture position 10b was along opening the active force and the point that act on frictional force balance throttle plate pin 12 on of directive effect in closure 10.Like this, be difficult to control independently frictional force, therefore be difficult to accurately control predetermined aperture position 10b.
When closure 10 has two force application mechanisms, because unique being defined as of predetermined aperture position 10b acts on the active force of closure 10 and along opening the point of directive effect in the force balance of closure 10, can accurately control predetermined aperture position 10b along closing direction.
Therefore, have at closure 10 under the situation of two force application mechanisms, if closure 10 is in the close aperture position 10a of closed position fully as shown in Fig. 6 (b) when control system breaks down, closure 10 remains on the predetermined aperture position 10b that is illustrated by the broken lines then along opening direction (direction shown in the arrow) rotation.The aperture that can keep closure 10 thus reliably is enough big so that internal-combustion engine maintained the state that can carry out failure operation.
Fig. 7 (a) and Fig. 7 (b) illustrate closure 10 from the aperture θ constantly that breaks down when control system
1Rotated position to predetermined aperture θ
0The process of position in, the plotted curve of the aperture time to time change of closure 10.Fig. 7 (a) illustrates the aperture θ when control system breaks down
1Greater than predetermined aperture θ
0Situation.Closure 10 slowly turns to predetermined aperture θ along closing direction
0The position.Fig. 7 (b) illustrates the aperture θ when control system breaks down
2Less than predetermined aperture θ
0Situation.Closure 10 slowly turns to predetermined aperture θ along opening direction
0The position.
Control system of electronic throttle valve according to the present invention is characterised in that when control system breaks down motor is transformed into regeneration mode.Motor is transformed into the technical meaning that regeneration mode has the quick rotation that prevents closure.That is, closure remains on the aperture position when control system breaks down and need not to be used for acting on along closing direction the force application mechanism of closure.
Fig. 8 is the view of structure that schematically shows the embodiment of the control system of electronic throttle valve of making according to above-mentioned viewpoint.That is, the embodiment from Fig. 1 to Fig. 5 has omitted first force application mechanism 30 and second force application mechanism 31.In this case, when control system breaks down, the aperture position when closure remains on fault.Like this, even when control system of electronic throttle valve breaks down, the driver of two-wheeled motor vehicle also can prevent the unexpected variation of vehicle feature and can not feel uncomfortable, and can prevent the variation of operability.
When control system of electronic throttle valve broke down, the throttle control of the enough manual activation closures 10 of utilizable energy turned to the position that can carry out failure operation with closure from the aperture position when control system breaks down along closing direction.
With reference to Fig. 9 and Figure 10, the following describes the example that closure wherein is provided with the structure of force application mechanism.
Fig. 9 is the view of structure that closure 10 is shown and is used to activate the motor 20 of closure 10.Each throttle body 11 is cylindrical shape, and each closure 10 is fixed on the common section air valve shaft 12 that extends through all throttle bodies 11.Motor 20 is positioned to its rotatingshaft and is parallel to throttle plate pin 12.The rotation of actuation gear 40 that is installed to the rotatingshaft of motor 20 is delivered to the throttle plate pin actuation gear 43 that is fixed on the throttle plate pin 12 via gear 41 broad in the middle and intermediate speed pinion 42, rotates thereby drive throttle plate pins 12 by throttle plate pin actuation gear 43.
Figure 10 is the sectional view of being got along the line X-X among Fig. 9.One spring 30a is mounted to around throttle plate pin 12.The end of spring 30a engages with pin 50 on being arranged on throttle plate pin actuation gear 43, and the other end is by a (not shown) supporting in housing 60 and the throttle body 11.Spring 30a acts on throttle plate pin 12 via throttle plate pin actuation gear 43 along closing direction.
Because the spring 30a that constitutes can be incorporated into the reduction gear that is used for the rotation of motor 20 is delivered to the throttle plate pin of closure as mentioned above, so do not need to be used for the extra holding space of mounting spring 30a.Spring 30a as force application mechanism can be used as the return spring of reduction gear to prevent its generation play.Therefore, can only use spring as applying the device of active force and being used to prevent the device of play.
The throttle control of manually actuable closure 10 can be provided with force application mechanism when control system breaks down.
Throttle control shown in the left view of Fig. 9.The closure handle 44 that is installed to the steering handle (not shown) is connected to intermediate pulley 46 via carburetor cable 45, and this intermediate pulley is connected to free arm 48 via link plate 49.
Figure 11 is the sectional view of this throttle control.The revolution operation of closure handle 44 is delivered to intermediate pulley 46 via carburetor cable 45, and the rotation of intermediate pulley 46 is delivered to free arm 48 via link plate 49.Free arm 48 has recess, when free arm 48 when direction shown in the arrow is rotated, the side of this recess extruding transmission part 47 is to rotate throttle plate pin 12.But the hand rotation closure 10 thus.
As shown in Figure 11, a spring 30b is mounted to the rotatingshaft around intermediate pulley 46.The end of spring 30b closes with the keying that is arranged on the intermediate pulley 46, and the other end is by a supporting in the throttle body 11.Spring 30b acts on throttle plate pin 12 via transmission part 47 along closing direction.
Illustrated according to control system of electronic throttle valve of the present invention.Control system of the present invention is characterised in that the reproduced state of using motor, and the present invention may be used on having the other mechanism as the motor of power source.
Describe the control system that is used for by electric motor driven closure or clutch in detail below with reference to Figure 12 to Figure 19.
Figure 12 illustrates the structure of two-wheeled motor vehicle.Two-wheeled motor vehicle 101 has the vehicle frame 102 that has head pipe 103, is connected to a pair of left and right sides case guide rail 104 of described head pipe 103, and the after-frame 105 that extends obliquely backwards from the rear end of case guide rail 104.Fuel tank 106 is arranged on the case guide rail 104, and engine unit 107 is positioned at case guide rail 104 belows.Be provided with main seat 108 in the front portion of after-frame 105.
Be supported with front fork 109 pivotly by head pipe 103.Steering handle 110 is installed to the upper end of front fork 109, and front-wheel 111 is bearing in the lower end of front fork 109.Be supported with the postbrachium 113 of making vertical oscillation by pivotal axis 114 by back arm support 112 in case guide rail 104 lower rear ends, be provided with trailing wheel 115 in the rear end of postbrachium 113.
Running board hanger 116 extends back from back arm support 112, and the wood clapper 117 that is used to support driver's pin stretches out from these running board hanger 116 broad wayss.
Hang and be supported with engine unit 107 from vehicle frame 102, this engine unit is a water-cooled four cycle in-line four cylinder motor, the crankcase 119 that is used to hold bent axle that is positioned to the cylinder block 118 that its cylinder-bore axis turns forward slightly and is positioned at cylinder block 118 belows and extends along the width direction of vehicle as power source and having.Cylinder head 120 and valve mechanism cover 121 are installed on the upper surface of cylinder block 118.
Form at the rear portion of cylinder block 118 and to be useful on the case of transmission (hereinafter will be called " speed changer ") 122 that holds many grades of gears, described gear is parallel to main shaft that bent axle extends and the multi-speed gear box of live axle constitutes by having.Speed changer 122 (transmission unit) has the clutch (controlled portion) that is used for engaging and breaking away from the rotation transmission when gearbox gear-shift.Crankcase 119 is installed in the downside of cylinder block 118 and speed changer 122.
AMT (automatic transmission) mechanism 126 is positioned at cylinder block 118 belows and is positioned at above the speed changer 122.AMT mechanism 126 is operated clutch and change the gearbox of speed changer 122 automatically, and comprises clutch motor 127 and the required parts of other AMT that are used for operated clutch.
Figure 13 illustrates gear shift actuating mechanism 128.This gear shift actuating mechanism 128 is positioned at the left side of two-wheeled motor vehicle 101 and is positioned at speed changer 122 tops, and has the linkage mechanism that is made of rod 129 and bar 130 of many grades of gears being used for operation transmission 122.
Figure 14 illustrates clutch motor 127.This clutch motor 127 is positioned at the right side of two-wheeled motor vehicle 101 and is positioned at speed changer 122 tops.Clutch mechanism is made of clutch motor 127, rod 131 and bar 132a, 132b.When driving clutch motor 127, bar 132a is along vertical (up and down) direction swing among the figure, and by the swing behavior of bar 132, rod 131 moves along horizontal (left and right directions) among the figure.Then, by moving of rod 131, bar 132b moves along vertical (fore-and-aft direction) among the figure, so that clutch in the speed changer 122 or disengaging.Clutch motor 127, rod 131 and bar 132a, 132b are as driving source.
One Gear-shift switch (not shown) for example is arranged on the handle side of left steering handle 133 among Figure 12, thus the driver can manually make gearbox from neutral gear to high-grade or upgrade on the contrary or downshift.Handle side at left steering handle 133 also is provided with AMT switch (not shown), thereby the driver can be switched the pattern of transforming gear operation between semi-automatic pattern and fully automatic mode.
Use AMT mechanism 126 to carry out the switching of many grades of gears and clutch by drag-line or hydraulic mechanism (not shown).
Figure 15 illustrates the throttle mechanisms 140 that is connected to the suction port of cylinder in the engine unit 107.
Each throttle body 141 is cylindrical shape, and each closure 142 all has and is arranged in the corresponding throttle body 141 and is fixed to valve plate 142b on the common section air valve shaft 142a that extends through all throttle bodies 141.Two throttle bodies 141 in two of the right side throttle bodies 141 and left side are connected to each other by connecting bump 141d among Figure 15, are provided with electric driver mechanism 143 between two throttle bodies 141 of centre.
The engine load sensor 144 of the aperture that is used to detect closure 142 is installed at the right-hand member of outward extending throttle plate pin 142a.The dish type bump 145a of one free arm 145 is installed in the left end of throttle plate pin 142a to relatively rotate.Free arm 145 has the arm 145b (not shown) that is connected to intermediate pulley 147 via link plate 146.Intermediate pulley 147 is connected to closure handle 149 on the steering handle 110 via carburetor cable 148.
Below throttle body 141, be provided with the fuel introducing portion that Fuelinjection nozzle 151, the one public fuel feed pipes 152 that are used for each cylinder are connected to each Fuelinjection nozzle 151.
Figure 16 is the block diagram of structure that the control system of two-wheeled motor vehicle 101 is shown.
In engine unit 107, throttle mechanisms 140 controls to the air inflow of cylinder and Fuelinjection nozzle 151 and regulates the fuel quantity that will spray in the cylinder with control output power (power).In throttle mechanisms 140, the driving force by the motor 143a in the electric driver mechanism 143 is rotated throttle plate pin 142a and is opened and closed closure 142.Engine load sensor 144 detects the aperture of closure 142 and exports the throttle opening testing signals to control unit 200.
Driving force switch clutch 170 by clutch motor 127 is to engage or to break away from from the transmission of power of engine unit 107 to speed changer 122.Clutch 170 has clutch spring, clutch disk and friction disk (not shown).
For engaging clutch 170, the driving force of solenoidoperated cluthes motor 127, feasible edge will be connected to the direction of live axle (not shown) by the extruding force of clutch spring and push clutch disk and friction disk gradually, thereby power can be delivered to speed changer 122 gradually from engine unit 107.For disconnecting clutch 170, the extruding force of the driving force releasing clutch spring by clutch motor 127 so that clutch disk and friction disk move along direction away from live axle, thereby can cut off from engine unit 107 to speed changer 122 transmission of power.
By driving force from the clutch switching signal solenoidoperated cluthes motor 127 of control unit 200 input, and joint and disengaging by these driving force solenoidoperated cluthes 170.Clutch sensor 201 detects the serviceability of clutches 170 and to control unit 200 output clutch position detection signals.Clutch spring and clutch motor 127 are as driving source.
Vehicle speed sensor 203 detects the rotating speed of trailing wheel 115 and the vehicle speed signal of exporting corresponding to this rotating speed to control unit 200.Closure handle jaw opening sensor 150 detects the operation angle of closure handle 149 and exports throttle operation angle testing signals to control unit 200.Gear-shift switch 205 is exported gear signal in response to driver's manually-operable to control unit 200.
Figure 17 is the block diagram of control unit 200.Control unit 200 is made of a plurality of input circlult 301-304, CPU 305, a plurality of drive circuit 306,307, a plurality of output monitoring circuit 308,309 and a plurality of motor power-down circuit 310,311.
In the drive circuit 306,307 each all is the H bridge circuit (see figure 4) with four transistor FET1 to FET4.When drive circuit 306,307 and motor are in positive revolving die formula, transistor FET1 and FET4 conducting and transistor FET2 and FET3 turn-off, electric current flows as shown in Fig. 4 (a).When drive circuit 306,307 and motor are in reversing mode, transistor FET2 and FET3 conducting and transistor FET1 and FET4 turn-off, electric current flows as shown in Fig. 4 (b).
When drive circuit 306,307 and motor are in braking mode, transistor FET1 and FET2 conducting and transistor FET3 and FET4 turn-off, electric current flows as shown in Fig. 4 (c).At this moment, motor 127,143a are as generator.Thereby, produce inverse electromotive force and produce rightabout electric current.By this electric current, produce along with the moment of the direction of the direction of rotation of motor 127,143a, this moment is as braking (moment).
Drive circuit 306,307 is based on from the conducting of the control signal oxide-semiconductor control transistors FET1 to FET4 of CPU 305 input with cut out, to control the clockwise and anticlockwise of motor 127,143a respectively.Drive circuit 306,307 is based on from the conducting of the mode switching signal oxide-semiconductor control transistors FET1 to FET4 of CPU 305 input with cut out, to control the brake operating of motor 127,143a respectively.
Output monitoring circuit 308,309 detects the driving current that flows respectively between drive circuit 306,307 and motor 143a, 127, and to CPU 305 output driving current signals.
Motor power-down circuit 310,311 provides electric power from motor power to drive circuit 306,307 respectively.When CPU 305 receives abnormal signal, motor power-down circuit 310,311 cuts off from the motor power to the drive circuit 306,307 power supply.Engine load sensor 144, closure handle jaw opening sensor 150, clutch sensor 201 and vehicle speed sensor 203 usefulness act on the detection unit of the running-active status of inspection vehicle.
The following describes the control operation in the two-wheeled motor vehicle 101 under the normal condition.
In two-wheeled motor vehicle 101, when the driver operates closure handle 149, by the operation angle of closure handle jaw opening sensor 150 detection closure handles 149, and with the CPU 305 in the throttle operation angle testing signal Input Control Element 200.By the aperture of engine load sensor 144 detection closures 142, and with the CPU305 in the throttle opening testing signal Input Control Element 200.
In two-wheeled motor vehicle 101, when the driver operates Gear-shift switch 205, with the CPU in the gear signal Input Control Element 200 305.By the serviceability of clutch sensor 201 detection clutches 170, and with the CPU 305 in the clutch position testing signal Input Control Element 200.
For disconnecting clutch 170, drive circuit 307 is by the extruding force of the driving force releasing clutch spring of clutch motor 127, so that clutch disk and friction disk move along the direction away from live axle, thereby can cut off from engine unit 107 to speed changer 122 transmission of power.
The following describes the control operation of two-wheeled motor vehicle 101 when CPU 305 breaks down.
When detecting operation exception, CPU 305 is to motor power-down circuit 310,311 output interrupt signals and to drive circuit 306,307 output mode switching signals.When CPU 305 receives abnormal signal, motor power-down circuit 310,311 cuts off from motor power 1,2 to drive circuit 306,307 power supply.
When motor power-down circuit 310,311 cuts off from the power supply of motor power and drive circuit 306,307 when CPU 305 receives mode switching signal, as shown in Fig. 4 (c), transistor FET1 and FET2 conducting and transistor FET3 and FET4 turn-off drive circuit 306,307 is transformed into braking mode, so that prevent the quick rotation of motor 127,143a.
Like this, when CPU 305 detects when unusual, power supply and drive circuit 306,307 that motor power-down circuit 310,311 cuts off from motor power are transformed into braking mode.Like this, the motor 143a in clutch motor 127 and the electric driver mechanism 143 is as generator.In each motor owing to produce inverse electromotive force and produce rightabout electric current, so produce along with the moment of the direction of the direction of rotation of motor, this moment is as braking (moment).
Thereby clutch motor 127 is transformed into braking mode, has prevented jerking of clutch 170.In addition, motor 143a is transformed into braking mode, has prevented jerking of closure 142.After this, the driver can pass through control node valve handle 149 manual unlocking or close the throttle 142.
As mentioned above, when CPU 305 detects when unusual, can prevent the quick rotation of motor 127,143a, to prevent the quick acting of clutch 170 and closure 142.Therefore, can prevent the unexpected variation of characteristic of two-wheeled motor vehicle 101 and the variation of driver's maneuverability.
The following describes the control operation of two-wheeled motor vehicle 101 when in sensor 144,150,201 and the switch 205 any one breaks down.
From the throttle opening testing signal of input circlult 301 or input circlult 302 inputs or throttle operation angle testing signal, occur when unusual when detecting, CPU 305 judges that engine load sensor 144 or closure handle jaw opening sensor 150 break down, and to motor power-down circuit 310 output interrupt signals, to drive circuit 306 output mode switching signals.When CPU 305 receives interrupt signal, motor power-down circuit 310 cuts off from the motor power to the drive circuit 306 power supply.
When motor power-down circuit 310 cuts off from the power supply of motor power and drive circuit 306 when CPU 305 receives mode switching signal, as shown in Fig. 4 (c), transistor FET1 and FET2 conducting and transistor FET3 and FET4 turn-off drive circuit 306 is transformed into braking mode, so that prevent the quick rotation of motor 143a.
Like this, when engine load sensor 144 or closure handle jaw opening sensor 150 broke down, power supply and drive circuit 306 that motor power-down circuit 310 cuts off from motor power were transformed into braking mode.Thereby the motor 143a in the electric driver mechanism 143 produces inverse electromotive force and produces rightabout electric current as generator.Because this electric current, produce along with the moment of the direction of the direction of rotation of motor 143a, this moment is as braking (moment).
Therefore, when engine load sensor 144 or closure handle jaw opening sensor 150 broke down, the quick rotation that can prevent motor 143a to be preventing jerking of closure 142, and can prevent the unexpected variation of the characteristic of two-wheeled motor vehicle 101.Therefore, the driver can not feel the variation of uncomfortable and maneuverability.
Occur from the clutch position testing signal of input circlult 304 input when unusual when detecting, CPU 305 judges that clutch sensors 201 break down, and to motor power-down circuit 311 output interrupt signals, to drive circuit 307 output mode switching signals.When CPU 305 receives interrupt signal, motor power-down circuit 311 cuts off from the motor power to the drive circuit 307 power supply.
When motor power-down circuit 311 cuts off from the power supply of motor power and drive circuit 307 when CPU 305 receives mode switching signal, as shown in Fig. 4 (c), transistor FET1 and FET2 conducting and transistor FET3 and FET4 turn-off drive circuit 307 is transformed into braking mode, so that prevent the quick rotation of clutch motor 127.
Like this, when clutch sensor 201 broke down, power supply and drive circuit 307 that motor power-down circuit 311 cuts off from motor power were transformed into braking mode.Thereby clutch motor 127 produces inverse electromotive force and produces rightabout electric current as generator.Because this electric current, produce along with the moment of the direction of the direction of rotation of clutch motor 127, this moment is as braking (moment).
Therefore, when clutch sensor 201 broke down, the quick rotation that can prevent clutch motor 127 to be preventing jerking of clutch 170, and can prevent the unexpected variation of the characteristic of two-wheeled motor vehicle 101.Therefore, the driver can not feel the variation of uncomfortable and maneuverability.
Occur from the gear testing signal of input circlult 303 input when unusual when detecting, CPU 305 judges that Gear-shift switches 205 break down, and to motor power-down circuit 311 output interrupt signals, to drive circuit 307 output mode switching signals.When CPU 305 receives interrupt signal, motor power-down circuit 311 cuts off from the motor power to the drive circuit 307 power supply.
As previously mentioned, in two-wheeled motor vehicle 101, when any one breaks down in sensor 144,150,201 and the switch 205, be cut off to the power supply that is used for drive motor 143a, 127 drive circuit 306,307 from motor power, thereby motor 143a, 127 be transformed into braking mode by drive circuit 306,307.
Like this, when control system breaks down, can prevent because the jerking of closure that the quick rotation of motor causes or clutch, and can prevent the unexpected variation of the characteristic of two-wheeled motor vehicle.Therefore, the driver can not feel the variation of uncomfortable and maneuverability.In addition, extra mechanism need be set in drive system or extra circuit is set in control system, can realize above-mentioned functions with low cost.
Although be provided with a plurality of drive circuits that are used for motor in control unit 200 as shown in Figure 17, the present invention is not limited to this structure.For example, the drive circuit 306 that is used for motor 143a can be arranged on control unit 200 as shown in Figure 18, and another control unit with same configuration also can be set for motor 127.
In above-mentioned example, because each drive circuit all is constructed with the H bridge circuit of transistor FET1 to FET4, any one breaking down all makes and is difficult to be transformed into braking mode among the transistor FET1 to FET4.Therefore, can as shown in Figure 19 the relay circuit 400 that is used for brake operating be connected to this H bridge circuit.
In this case, when breaking down, can be by cutting off the power supply from the motor power to the drive circuit and making relay circuit 400 actions and reliably motor is transformed into braking mode.Therefore, can strengthen the reliability of brake operating.The components and parts that are used for relay circuit 400 are not limited to relay switch.Also can use the semiconductor components and devices that can carry out switching manipulation.
Although the present invention is applied to use the vehicle of engine unit as power source in above-mentioned example, the present invention is not limited to this.The present invention for example also can be applicable to use motor as the vehicle of power source.In addition, although throttle mechanisms uses electric driver mechanism 143 and throttle control 160 as driving source, also can use to be used to act on the spring of closure as driving source.
Although described any one situation about breaking down in sensor 144,150 in the control system of electronic throttle valve etc. in above-mentioned example, the present invention is not limited to this.Control system of the present invention can be reacted for any fault in the control system of electronic throttle valve.
Although described the present invention in a preferred embodiment of the invention, these descriptions are not can carry out various modification in order to limit, to should be appreciated that.Two-wheeled motor vehicle among the embodiment is meant the motorcycle that comprises any moped and small-sized (pedal-type) motorcycle, more specifically, is the vehicle that can turn to by the inclination vehicle body.Therefore, be equipped with two or more front-wheels and/or two or more trailing wheels, that is, the vehicle that has three or four (or more) wheels altogether is also included within " two-wheeled motor vehicle ".
Industrial applicability
According to the present invention, so a kind of control system of electronic throttle valve can be provided, this system does not need volume Outer spatial accommodation and when control system breaks down, can prevent the air throttle quick rotation.
Claims (17)
1. control system of electronic throttle valve, this system has: the closure that is used for the air inflow of controlling combustion engine; Be used to drive the motor of described closure; And the control device that is used to control described motor; It is characterized in that:
Described closure has the force application mechanism that is used for acting on along closing direction described closure; And
When described control system broke down, described control device was converted to regeneration mode with described motor, to control the speed that described closure rotates along closing direction by the active force of described force application mechanism.
2. control system of electronic throttle valve according to claim 1 is characterized in that, when this control system broke down, described closure rotated along closing direction by the active force of described force application mechanism, remains on predetermined aperture position then.
3. control system of electronic throttle valve according to claim 2 is characterized in that, when described closure remained on described predetermined aperture position, described internal-combustion engine maintained the state that can carry out failure operation.
4. according to each described control system of electronic throttle valve in the claim 1 to 3, it is characterized in that when this control system broke down, described control device cut off from the electric power of power supply to described motor, then described motor is converted to regeneration mode.
5. according to each described control system of electronic throttle valve in the claim 1 to 3, it is characterized in that described force application mechanism is made of the mechanism with spring.
6. according to each described control system of electronic throttle valve in the claim 1 to 3, it is characterized in that, this control system of electronic throttle valve also comprises the throttle control that is used for the described closure of manual drives, thereby can rotate described closure along closing direction when this control system breaks down.
7. control system of electronic throttle valve, this system has: the closure that is used for the air inflow of controlling combustion engine; Be used to drive the motor of described closure; And the control device that is used to control described motor; It is characterized in that,
Described closure has: first force application mechanism that is used for acting on along closing direction described closure; And be used for along opening second force application mechanism of directive effect in described closure, and
When described control system breaks down, described control device is converted to regeneration mode with described motor, to control described closure by the relativity power of described first force application mechanism and described second force application mechanism along closing direction or open the speed that direction is rotated.
8. control system of electronic throttle valve according to claim 7, it is characterized in that, when this control system breaks down, the relativity power of described closure by described first force application mechanism and described second force application mechanism is along closing direction or open direction and rotate, and remains on predetermined aperture position then.
9. control system of electronic throttle valve according to claim 8 is characterized in that, when described closure remained on described predetermined aperture position, described internal-combustion engine maintained the state that can carry out failure operation.
10. according to each described control system of electronic throttle valve in the claim 7 to 9, it is characterized in that when this control system broke down, described control device cut off from the electric power of power supply to described motor, then described motor is converted to regeneration mode.
11., it is characterized in that described force application mechanism is made of the mechanism with spring according to each described control system of electronic throttle valve in the claim 7 to 9.
12. according to each described control system of electronic throttle valve in the claim 7 to 9, it is characterized in that, this control system of electronic throttle valve also comprises the throttle control that is used for the described closure of manual drives, thereby can rotate described closure along closing direction when this control system breaks down.
13. a control system of electronic throttle valve, this system has: the closure that is used for the air inflow of controlling combustion engine; Be used to drive the motor of described closure; And the control device that is used to control described motor; It is characterized in that:
When this control system broke down, described control device was converted to regeneration mode with described motor, to control the rotation of described closure.
14. control system of electronic throttle valve according to claim 13 is characterized in that, when this control system broke down, described closure remained on its residing aperture position this moment.
15., it is characterized in that when this control system broke down, described control device cut off from the electric power of power supply to described motor, then described motor is converted to regeneration mode according to claim 13 or 14 described control system of electronic throttle valve.
16. according to claim 13 or 14 described control system of electronic throttle valve, it is characterized in that, this control system of electronic throttle valve also comprises the throttle control that is used for the described closure of manual drives, thereby can rotate described closure along closing direction when this control system breaks down.
17. two-wheeled motor vehicle that has according to each described control system of electronic throttle valve in the claim 1 to 16.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP382033/2003 | 2003-11-12 | ||
| JP2003382033 | 2003-11-12 | ||
| JP113570/2004 | 2004-04-07 |
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| Publication Number | Publication Date |
|---|---|
| CN1878940A CN1878940A (en) | 2006-12-13 |
| CN100400826C true CN100400826C (en) | 2008-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800333610A Active CN100412335C (en) | 2003-11-12 | 2004-11-09 | Control system of electronic throttle valve and motorcycle |
| CNB200480033363XA Active CN100400826C (en) | 2003-11-12 | 2004-11-09 | Control system of electronic throttle valve and motorcycle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2004800333610A Active CN100412335C (en) | 2003-11-12 | 2004-11-09 | Control system of electronic throttle valve and motorcycle |
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| CN (2) | CN100412335C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5806830B2 (en) * | 2011-03-29 | 2015-11-10 | 本田技研工業株式会社 | Saddle riding vehicle |
| CN104179578B (en) * | 2014-08-15 | 2016-08-17 | 广西淞森车用部件有限公司 | A kind of automotive electronics air throttle |
| CN111668512A (en) * | 2020-05-25 | 2020-09-15 | 深圳国氢新能源科技有限公司 | Fuel cell throttle valve, fuel cell system and fuel cell vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054117A (en) * | 1990-02-16 | 1991-08-28 | 西门子公司 | The manufacture method of engine throttle gate segment assembly and throttle blade thereof |
| JPH06248979A (en) * | 1993-02-23 | 1994-09-06 | Nissan Motor Co Ltd | Throttle drive device |
| JP2000145481A (en) * | 1998-11-12 | 2000-05-26 | Eaton Corp | Electronic throttle unit and air flow forming process using same |
| JP2002256896A (en) * | 2001-03-05 | 2002-09-11 | Yamaha Motor Co Ltd | Throttle control device for engine |
| JP2003065140A (en) * | 2001-08-29 | 2003-03-05 | Yamaha Motor Co Ltd | Engine control device |
-
2004
- 2004-11-09 CN CNB2004800333610A patent/CN100412335C/en active Active
- 2004-11-09 CN CNB200480033363XA patent/CN100400826C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054117A (en) * | 1990-02-16 | 1991-08-28 | 西门子公司 | The manufacture method of engine throttle gate segment assembly and throttle blade thereof |
| JPH06248979A (en) * | 1993-02-23 | 1994-09-06 | Nissan Motor Co Ltd | Throttle drive device |
| JP2000145481A (en) * | 1998-11-12 | 2000-05-26 | Eaton Corp | Electronic throttle unit and air flow forming process using same |
| JP2002256896A (en) * | 2001-03-05 | 2002-09-11 | Yamaha Motor Co Ltd | Throttle control device for engine |
| JP2003065140A (en) * | 2001-08-29 | 2003-03-05 | Yamaha Motor Co Ltd | Engine control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1878939A (en) | 2006-12-13 |
| CN1878940A (en) | 2006-12-13 |
| CN100412335C (en) | 2008-08-20 |
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