CN101235894A - Control apparatus, speed changer, vehicle, control method and method for estimating heat quantity value - Google Patents
Control apparatus, speed changer, vehicle, control method and method for estimating heat quantity value Download PDFInfo
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- CN101235894A CN101235894A CNA2008100052424A CN200810005242A CN101235894A CN 101235894 A CN101235894 A CN 101235894A CN A2008100052424 A CNA2008100052424 A CN A2008100052424A CN 200810005242 A CN200810005242 A CN 200810005242A CN 101235894 A CN101235894 A CN 101235894A
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Abstract
The invention provides a transmission which can estimate heat value of a motor with a simple structure. The motorcycle (1) is provided with a transmission (20). The transmission (20) has a transmission mechanism (20a) and an ECU (7). The transmission mechanism (20a) includes: a crankshaft (11) as an input shaft, a driven shaft (27) as an output shaft, and an electric motor (30). The electric motor (30) changes continuously the transmission ratio between the crankshaft (11) and the driven shaft (27). The ECU (7) estimates the heat value of the motor (30) from the rate of change in the transmission ratio.
Description
Technical field
The present invention relates to be used for the method for control gear, the speed changer of gear, the vehicle that is provided with speed changer, control gear and the method for estimating the calorie value of motor.Particularly, the method for the present invention relates to be used for electronic controlled transmission, the vehicle that is provided with such speed changer that the control gear, its gear ratio of the automatically controlled gear that its gear ratio can change with motor can change with motor, controlling the method for the automatically controlled gear that its gear ratio can change with motor and estimate the calorie value of the automatically controlled gear motor that its gear ratio can change with motor.
Background technique
Known a kind of traditional stepless speed variator, its gear ratio can use motor to change (hereinafter referred to as ECVT, full name is electric stepless speed variator) (for example, patent documentation 1) continuously.
[patent documentation 1] JP-A-2004-19740
Summary of the invention
The problem to be solved in the present invention
In ECVT, because the variation of gear ratio, reverse direction actuation motor more continually.Therefore, motor produces a large amount of heats, causes the temperature of motor and its drive circuit to raise, and causes the deterioration of motor performance.
Therefore preferably monitor motor temperature or calorie value, what make that motor temperature is no more than motor allows the serviceability temperature scope.For example, can expect a kind of method of estimating motor temperature, wherein on motor, its drive circuit etc., temperature transducer is set.Because the electric current of the calorie value of motor and the motor of flowing through is square proportional, therefore the another kind that can expect estimates that the method for the calorie value of motor provides current sensor, with the flow through electric current of motor of measurement, and estimate the calorie value of motor from the electric current that measures.
But above-mentioned method need be provided with temperature transducer and current sensor separately.Therefore, the structure of ECVT and control become complicated undesirably.
At above-mentioned aspect, make the present invention.Therefore, the object of the present invention is to provide a kind of speed changer, its feasible calorie value that can estimate motor with simple structure.
In addition, though use ECVT to explain the problem that will solve as example here, the problem that solve also exists for the general speed changer that uses motor to change velocity ratio.
The scheme of dealing with problems
Control gear of the present invention is the control gear of stepless speed changing mechanism, and this stepless speed changing mechanism is by input shaft; Output shaft; And the motor formation that is used for infinitely changing the gear ratio between input shaft and the output shaft.Control gear of the present invention is estimated the calorie value of motor based on the rate of change of gear ratio.
Stepless speed variator of the present invention is made of stepless speed changing mechanism and control section.Stepless speed changing mechanism comprises input shaft, output shaft and motor.Motor infinitely changes the gear ratio between input shaft and the output shaft.Control section is estimated the calorie value of motor based on the rate of change of gear ratio.
Vehicle of the present invention comprises stepless speed variator of the present invention.
Controlling method of the present invention is the method for control stepless speed changing mechanism, and this stepless speed changing mechanism is by input shaft; Output shaft; And the motor formation that is used for infinitely changing the gear ratio between input shaft and the output shaft.Utilize controlling method of the present invention, estimate the calorie value of motor from the rate of change of gear ratio.
The method of the calorie value of estimation motor of the present invention is to estimate the method for the calorie value of motor in the stepless speed variator, and wherein stepless speed variator is made of input shaft, output shaft and the motor that is used for the gear ratio between stepless change input shaft and the output shaft.Estimate the method for the calorie value of motor according to the present invention, estimate the calorie value of motor from the rate of change of gear ratio.
The invention effect
The present invention can provide a kind of speed changer of estimating the calorie value of motor with simple structure.
Description of drawings
Fig. 1 is a side view of having used motorcycle of the present invention.
Fig. 2 is the sectional view of engine unit.
Fig. 3 is the phantom that the structure of ECVT is shown.
Fig. 4 is the block diagram of the control system of expression motorcycle.
Fig. 5 is the block diagram of expression wheel location control.
Fig. 6 is the plotted curve as the function r=f (l) of example.
Fig. 7 is the plotted curve as the function r=f (l) of another example.
Fig. 8 is the plotted curve as the function r=f (l) of another example.
Fig. 9 is the flow chart that the method for the calorie value of estimating motor is shown and controls the method for motor.
Embodiment
(first embodiment)
(general introduction of present embodiment)
Because conscientiously research, the inventor finds the relation between the rate of change of the calorie value of motor and gear ratio, and has realized present embodiment.
Use motorcycle 1 to describe the example of the preferred embodiments of the present invention in detail as example below.Though use so-called scooter type motorcycle 1 to describe present embodiment as example, vehicle of the present invention is not limited to scooter type motorcycle.But the vehicle outside the vehicle scooter type motorcycle of the present invention.Particularly, sulky vehicle of the present invention can be the foot-operated type of cross-country type, motor cycle type, scooter type or so-called power-assisted.In addition, vehicle of the present invention can be the Straddle-type vehicle outside the motorcycle.Particularly, relevant with the present invention vehicle for example can be ATV (all-terrain vehicle).In addition, vehicle of the present invention can be the vehicle outside the Straddle-type vehicle, such as four-wheel car.
[according to the detailed description of the motorcycle 1 of present embodiment]
(the general structure of motorcycle 1)
Fig. 1 is the side view of motorcycle 1.Motorcycle 1 is provided with the body shell (not shown).Engine unit 2 is installed on the body shell.Trailing wheel 3 is attached to the rear portion of engine unit 2.In the present embodiment, trailing wheel 3 is the driving wheels that drive with engine unit 2.
Body shell has the head pipe (not shown) that extends from handle 4 downwards.Front fork 5 connects the underpart of pipe to the end.Front-wheel 6 is attached in rotary manner the underpart of front fork 5.Front-wheel 6 is free of attachment to engine unit 2, and is the wheel that rotates freely.
(formation of engine unit 2)
The formation of engine unit 2 then, is described with reference to figure 2 and 3.
(formation of motor 10)
Shown in Fig. 2 and 3, engine unit 2 comprises (internal-combustion engine) motor 10 and speed changer 20.In the present embodiment, the motor 10 of description is forced air-cooling, foru cycle engine.But motor 10 can be other types.For example, motor 10 can be a water-cooling type.In addition, motor 10 can be the two stroke cycle type.
As shown in Figure 3, motor 10 has bent axle 11.Axle sleeve 12 carries out spline fitted with the periphery of bent axle 11.Axle sleeve 12 is supported with rotation by bearing 13 by housing 14.The overrunning clutch 31 that is connected to motor 30 be attached to axle sleeve 12 around.
(formation of speed changer 20)
Gear 20a has driving wheel 21, follower 22 and V-belt 23.V-belt 23 twines around driving wheel 21 and follower 22.V-strapped cross section is roughly V-arrangement.
As shown in Figure 3, movable wheel half 21b of is provided with cylindrical wheel hub portion 21d, and bent axle 11 is by cylindrical wheel hub portion 21d.Cylindrical slider 24 is fixed to the inboard of hub portion 21d.Slide block 24 and movable wheel half 21b of form one, with can moving axially along bent axle 11.Therefore, the groove width of trough of belt 21c can change.
Along with movable wheel half 21b of by the axial driving of motor 30 along bent axle 11, the groove width of the trough of belt 21c of driving wheel 21 changes.In the present embodiment, suppose that motor 30 drives by PWM (pulse duration modulation).But the driving type of motor 30 is also nonrestrictive.Motor 30 can be a stepping motor.
According to the revolution of fast pulley half 22a of, centrifugal clutch 25 engages or separates.That is, when the revolution of fast pulley half 22a of was lower than specified value, centrifugal clutch 25 separated.Therefore, the rotation of fast pulley half 22a of is not delivered to driven shaft 27.On the other hand, when the revolution of fast pulley half 22a of met or exceeded specified value, centrifugal clutch 25 engaged, and makes the rotation of fast pulley half 22a of be delivered to driven shaft 27.
(control system that is used for motorcycle 1)
The details of the control system that is used for motorcycle 1 then, is described with reference to figure 4.
(being used for the general introduction of the control system of motorcycle 1)
As shown in Figure 4, ECU7 is connected to wheel location sensor 40.Wheel location sensor 40 detects the position of movable wheel half 21b of of driving wheel 21 with respect to its fast pulley half 21a of.In other words, its detection fast pulley half 21a of and movable wheel half 21b of are along the axial distance (1) of bent axle 11.Wheel location sensor 40 outputs to ECU7 with detected distance (1) as detected wheel location signal.Here, wheel location sensor 40 for example can be made of potentiometer etc.
ECU7 is also connected to driving wheel tachometer generator 43, follower tachometer generator 41 and vehicle speed sensor 42.Driving wheel tachometer generator 43 detects the revolution of driving wheel 21.Driving wheel tachometer generator 43 outputs to ECU7 with the revolution of detected driving wheel 21 as wheel revolution signal.Follower tachometer generator 41 detects the revolution of follower 22.Follower tachometer generator 41 outputs to ECU7 with the revolution of detected follower 22 as wheel revolution signal.Vehicle speed sensor 42 detects the revolution of trailing wheel 3.Vehicle speed sensor 42 outputs to ECU7 based on detected revolution with vehicle speed signal.
ECU7 is connected to the grip switches that is attached to steering handle 4.When by driver's operating handle switch, grip switches output grip switches signal.
As mentioned above, engine load sensor 18a outputs to ECU7 with the throttle opening signal.
(control gear 20a)
ECU7 carries out the feedback control of wheel location of movable wheel half 21b of of driving wheel 21 according to vehicle speed signal etc.In other words, ECU7 carries out the feedback control of distance (1) according to vehicle speed signal etc.Particularly, as shown in Figure 5, in ECU7, determine target change gear ratio from the throttle opening and the speed of a motor vehicle.ECU7 calculates the wheel target location from the target change gear ratio of determining.In other words, ECU7 is from definite target change gear ratio calculating movable wheel half 21b of and the object distance 1 between fast pulley half 21a of.For movable wheel half 21b of being moved to the wheel target location, ECU7 outputs to drive circuit shown in Figure 48 with the pulse width modulating signal (pwm signal) corresponding with the current location of movable wheel half 21b of and wheel target location.Drive circuit 8 is applied to motor 30 with the pulsed voltage corresponding with pwm signal.Therefore, drive movable wheel half 21b of, to regulate gear ratio.
(estimating the calorie value of motor 30)
The method of the calorie value of estimating motor 30 then, is described.At first, before the concrete grammar of describing the calorie value of estimating motor 30, the principle of this method is described.
(estimating the principle of the heat that motor 30 produces)
Because conscientiously research, the inventor finds the relation between the rate of change of the calorie value of motor 30 and gear 20a gear ratio.Particularly, because the discovery enumerated below, the inventor draws the relation between the rate of change of gear ratio of heat and gear 20a.
1) calorie value of motor 30 be applied to that to cause motor 30 to produce that part of square of heats in the effective voltage of motor 30 linear.
2) voltage that causes motor 30 to produce heat is determined by deduct the induced voltage that is used for mobile movable wheel half 21b of from the effective voltage that is applied to motor 30.
3) it is linear to be used for the rate of change of gear ratio of the induced voltage of mobile movable wheel half 21b of and gear 20a.
From inventor's above-mentioned discovery, formula (1) is estimated the calorie value of motor 30 below using:
∫β{V
A-α·(dr/dt)}
2·dt (1)
Wherein:
β: constant
V
A: the effective voltage that is applied to motor 30
Dr/dt: the rate of change of the gear ratio of gear 20a
α: constant or by following formula (3a) or (3b) expression factor:
α＝[d{f(l)}/dl]
-1 (3a)
α＝[d{g(r)}/dr] (3b)
Wherein:
F (l): the function of the distance 1 of expression gear ratio
R: gear ratio
G (r): the function of gear ratio r, or the inverse function of above-mentioned function f (l).
In the present embodiment, above-mentioned formula (3a) and (3b) be equal to each other.
In the present embodiment, because as mentioned above by pulse duration modulation control motor 30, the V in the above-mentioned formula (1)
ARepresent with following formula (2):
V
A＝V
p·(DUTY) (2)
Wherein
V
p: the size that is applied to the pulsed voltage of motor 30
DUTY: the dutycycle that is applied to the pulsed voltage of motor 30.
Therefore, formula (1) can be below formula (2) convert to formula (4):
∫β{V
A-α·(dr/dt)}
2·dt (4)
Wherein:
β: constant
V
p: the size that is applied to the pulsed voltage of motor 30
DUTY: the dutycycle that is applied to the pulsed voltage of motor 30
α: constant or by following formula (3a) or (3b) expression factor:
α＝[d{f(l)}/dl]
-1 (3a)
α＝[d{g(r)}/dr] (3b)
Wherein:
F (l): distance 1 function of expression gear ratio
R: gear ratio
G (r): the function of gear ratio r, or the inverse function of above-mentioned function f (l).
According to this enforcement, the above-mentioned formula of use as described below (4) is estimated the calorie value of motor 30.Trailing wheel position transducer 40 detected distances 1 are calculated the rate of change of the gear ratio of gear 20a.
In above-mentioned formula (4), determine function r=f (l) according to the shape of trough of belt 21c and trough of belt 22c.For example, as shown in Figure 6, function r=f (l) can be following protruding exponential function.In other words, can set function r=f (l), make that the variation of gear ratio r becomes slow with respect to the variation of distance 1 along with distance 1 increases and the increase of trough of belt 21c width.In other words, can set function r=f (l), make that along with gear ratio changes towards high side, the variation of gear ratio r becomes slow with respect to the variation of distance 1.In the case, along with distance 1 increases, the value α in the formula (4) tends to littler.
Perhaps, as example, function r=f (l) can be the exponential function of epirelief, as shown in Figure 7.In other words, can set function r=f (l), make along with distance 1 increases and the increase of trough of belt 21c width, the variation of gear ratio r is with respect to becoming rapid apart from 1 variation.In other words, can set function r=f (l), make along with gear ratio changes towards high side, the variation of gear ratio r is with respect to becoming rapid apart from 1 variation.In the case, along with distance 1 increases, the value α in the formula (4) tends to bigger.
In addition, as example, what function r=f (l) can be for linearity, as shown in Figure 8.In other words, the value regardless of distance 1 and trough of belt 21c can be set at constant with function r=f (l).In other words, regardless of gear ratio, function r=f (l) can be set at constant.In the case, regardless of distance 1, the value α in the formula (4) remains unchanged.That is, α is a constant.
(estimating the method and the method for controlling motor 30 of the calorie value of motor 30)
Fig. 9 is the flow chart of the method for the method of the expression calorie value of estimating motor 30 and control motor 30.As shown in Figure 9, at first in step S1, estimate the calorie value of motor 30.Particularly, in step S1, use above-mentioned formula (4) to estimate the calorie value of motor 30.
Then, in step S2, whether the estimating heat quantity value of the motor 30 among the determining step S1 is greater than specified value.Because the temperature correlation of the calorie value of motor 30 and motor 30, generally speaking, the calorie value of motor 30 is big more, and then the temperature of motor 30 correspondingly becomes high more.Therefore, whether perhaps according to the judgement among the step S2 " estimating heat quantity value of motor 30 greater than regulation calorie value ", whether the temperature that can judge motor 30 is on specified value.In other words, in step S2, mainly judge whether the temperature of motor 30 is positioned on the specified value.
In addition, according to the characteristic of motor 30 and drive circuit 8, can suitably stipulate " regulation calorie value " among the step S2.For example, " regulation calorie value " can be defined as such value,, estimate in motor 30 and drive circuit 8, mis-behave to take place at this value place.In other words, " regulation calorie value " may be prescribed as such value, and on this value, the temperature of estimating motor 30 is above allowing the serviceability temperature limit.
When the calorie value of in the step S2 shown in Fig. 9, judging motor 30 during, handle proceeding to step S3 greater than specified value.In step S3, limit or stop the operation of motor 30.
After this, handle to proceed to step S4, to judge in restriction or after stopping the operation of motor 30 whether passed through stipulated time length.Whether the temperature of in other words, judging in restriction in step S4 or whether having passed through stipulated time length and motor 30 after stopping the operation of motor 30 fully reduction.Here, " stipulated time length " for example may be prescribed as for the required time span of the temperature that reduces motor 30 fully.Therefore, fully reduce the required time span of motor 30 temperature according to the control content of in step S3, carrying out and difference.For example, when the operation of motor 30 stopped, the temperature of motor 30 reduced than very fast, so that " stipulated time length " may be prescribed as is shorter.
When in step S4, judging in restriction or also do not pass through scheduled time length after stopping the operation of motor 30, handle turning back among the step S4.On the other hand,, handle and proceed to step S5 when in step S4, judging in restriction or having passed through the stipulated time after stopping motor 30 operations during length, and the operation recovery of motor 30 limit in the step S3 or stop before state.
With top opposite,, do not carrying out step S3 termination under the situation of S5 when the calorie value of in step S2, judging motor 30 during less than specified value.
In addition, restriction or stop that the control of the operation of motor 30 is not limited to stipulate in step S3 makes the calorie value of motor 30 become less than the calorie value of the normal running of motor 30 as long as carry out such control.For example, can stop the operation of motor 30.In other words, can limit change to gear ratio.In addition, for example, can reduce the revolution upper limit of motor 30 and at least one in the torque upper limit.In other words, can reduce the upper limit of rate of change of the gear ratio of gear 20a.That is, the rate of change of the gear ratio of gear 20a surpasses in the control of its upper limit therein, the rate of change of gear ratio can be restricted to upper limit speed downwards.In addition, for example, can be so that the permissible revolution scope of motor 30 diminishes.In other words, can be so that the permissible range of the gear ratio of gear 20a diminishes.In addition, for example, can only make the action (such as kickdown) of flip-flop gear ratio invalid.Particularly, can adopt the method (see figure 5) of the ECU7 pulse width modulating signal that output duty cycle is not bigger.
(function and effect)
Utilize the foregoing description, estimate the calorie value of motor 30 from the rate of change of the gear ratio of gear 20a.Therefore, use by will be arranged on usually the sensor that is used to measure gear ratio among the gear 20a to gear ratio carry out the rate of change that differential obtains gear ratio with respect to the time, estimate the calorie value of motor 30.Particularly, in the present embodiment, use rate of change, estimate the calorie value of motor 30 according to the gear ratio of calculating with wheel location sensor 40 detected distances 1.Therefore, under situation about not using, can estimate the calorie value of motor 30 with cheap simple structure such as the additional sensors of temperature transducer and current sensor.
The temperature that surpasses the regulation calorie value and estimate motor 30 when the calorie value of motor 30 risen above motor 30 allow the serviceability temperature scope time, limit or stop the operation of motor 30.This prevents that motor 30 is heated above allowing the serviceability temperature scope.Therefore, the mis-behave and the damage of restrictions motor 30 and drive circuit 8 effectively.
Particularly, though the variation step-down of gear ratio, the upper limit of the rate of change of the gear ratio by reducing gear 20a and the method for operating of restrictions motor 30 is preferred, because gear ratio changes according to the speed of a motor vehicle, thereby the manipulation of motorcycle 1 is subjected to less influence.
Also in the present embodiment, when restriction or after stopping the operation of motor 30 through stipulated time during length, with the operation recovery of motor 30 to restriction or stop state before.Therefore, be reduced to when allowing in the serviceability temperature scope through stipulated time length and the temperature of estimating motor 30 when restriction or after stopping the operation of motor 30, the operation of motor 30 becomes normally.Like this, can when only need, limit or stop the operation of motor 30, operating motor 30 promptly in other cases, and with than higher rapid change gear ratio.Therefore, realize high-quality driven nature.
(other change example)
Gear 20a is not limited to belt ECVT.For example, gear 20a can be friction ring type ECVT.In addition, gear 20a can be the mechanism except that CVT.That is, to the type of gear 20a without limits, as long as it is by automatically controlled.But, because the reverse direction actuation of motor 30 often takes place in ECVT, so the present invention is especially effective to ECVT.
Using motor 30 and gear 20a by PWM control at motorcycle 1 is under belt ECVT (as above-mentioned embodiment's) the situation, and the calorie value of motor 30 can use above-mentioned formula (4) to estimate.At for example motor 30 is not or not under the situation of belt ECVT by PWM control or gear 20a, and the calorie value of motor 30 can use more general formula (formula (1)) to estimate.In the case, much less, can carry out conversion to formula (1) according to gear 20a.In other words, formula (1) can be applied even more extensively any gear 20a, if its by automatically controlled so that change gear ratio with motor.Use the feasible calorie value that can estimate motor 30 of formula (1), and no matter by the type of automatically controlled gear 20a.Therefore, present embodiment is not provided with restriction to the type of gear 20a, as long as use motor to carry out automatically controlled to gear.
But the vehicle outside the vehicle scooter type motorcycle of the present invention.Vehicle of the present invention can be the foot-operated type of cross-country type, motor cycle type, scooter type or so-called power-assisted.In addition, vehicle of the present invention can be the Straddle-type vehicle outside the motorcycle.Particularly, vehicle of the present invention for example can be ATV (all-terrain vehicle).In addition, vehicle of the present invention can be the vehicle outside the Straddle-type vehicle, such as four-wheel car.
Though the foregoing description uses the motorcycle 1 that is provided with internal-combustion engine 10 to describe as preferred exemplary, vehicle of the present invention can be any vehicle that is provided with the driving source outside the motor.For example, vehicle of the present invention can be provided with motor to replace motor 10.
(term definition used herein)
According to the characteristic of motor 30 and drive circuit 8, can suitably stipulate " regulation calorie value " among the step S2.For example, " regulation calorie value " can be defined as such value, on this value, estimate in motor 30 and drive circuit 8, mis-behave to have taken place.In other words, " regulation calorie value " may be prescribed as such value, and on this value, what the temperature of estimating motor 30 surpassed motor 30 allows the serviceability temperature scope.
Limit or stop the details of control of the operation of motor 30 according to being used to of carrying out among the step S3, can suitably stipulate " stipulated time length " among the step S4.For example, time span after " stipulated time length " among the step S4 may be prescribed as restriction or stops motor 30 operations, in this time span, the temperature of motor 30 can be judged as and be reduced to the allowing in the serviceability temperature scope of motor 30 fully.
Phrase " distance between movable wheel half 22b of and fast pulley half 22a of " is meant the distance between the specified point of specified point on movable wheel half 22b of and fast pulley half 22a of.Can set these specified points at random, as long as determine in them each with single meaning.For example, as shown in Figure 3, " distance between movable wheel half 22b of and fast pulley half 22a of " can be defined as the radially outermost end of movable wheel half 22b of and the radially distance between the outermost end of fast pulley half 22a of.
Term " size of pulsed voltage " refers to the size of input pulse voltage.
Term " effective voltage " is meant by input pulse voltage be multiply by the voltage that dutycycle obtains.
[industrial applicability]
The present invention is effective for the vehicle that is provided with ECVT.
Claims (15)
1. control gear that is used for gear, described gear comprises:
Input shaft;
Output shaft; And
Motor is used to change the gear ratio between described input shaft and the described output shaft;
Wherein, described control gear is estimated the calorie value of described motor from the rate of change of described gear ratio.
2. control gear according to claim 1 wherein, when the calorie value of the estimation of described motor meets or exceeds specified value, limits or stops the operation of described motor.
3. control gear according to claim 2, wherein, when the calorie value of the described estimation of described motor met or exceeded specified value, the upper limit of the rate of change by reducing described gear ratio limited the operation of described motor.
4. control gear according to claim 2 wherein, when the calorie value of the described estimation of described motor meets or exceeds specified value, limits the operation of described motor by the permissible range of dwindling described gear ratio.
5. according to the described control gear of claim 2, wherein, from restriction or stop described electric motor operated through after the stipulated time, the operation that recovers described motor.
6. control gear according to claim 1, wherein, formula (1) is estimated the described calorie value of described motor below using:
∫β{V
A-α·(dr/dt)}
2·dt (1)
Wherein:
β: constant
V
A: the effective voltage that is applied to described motor
Dr/dt: the rate of change of described gear ratio
α: by the constant of following formula (3b) expression
α＝[d{g(r)}/dr] (3b)
Wherein:
G (r): the function of gear ratio r.
7. control gear according to claim 6 also comprises drive circuit, is used for pulsed voltage is applied to described motor, and formula (2) below satisfying:
V
A＝V
p·(DUTY) (2)
Wherein:
V
p: the size of described pulsed voltage
DUTY: the dutycycle of described pulsed voltage.
8. control gear according to claim 1, wherein said gear comprises:
Be arranged on the driving wheel on the described input shaft,
Be arranged on the follower on the described output shaft, and
Around the V-belt of described driving wheel and the winding of described follower,
Described driving wheel comprises:
Fast pulley half one, and
Movable wheel half one, relative with described fast pulley half one, can be along the moving axially of described input shaft, and constitute V-shaped groove with described fast pulley half one, described V-belt twines around described V-shaped groove,
Described motor changes described gear ratio by move described movable wheel half one with respect to described fast pulley half one with the width that changes described V-shaped groove, and
Formula (1) is estimated the calorie value of described motor below using:
∫β{V
A-α·(dr/dt)}
2·dt。(1)
Wherein:
β: constant
V
A: the effective voltage that is applied to described motor
Dr/dt: the variance ratio of described gear ratio
α: by following formula (3a) or (3b) expression constant:
α＝[d{f(l)}/dl]
-1 (3a)
α＝[d{g(r)}/dr] (3b)
Wherein:
F (l): the function of representing the distance 1 of described gear ratio
G (r): the function of gear ratio, the inverse function of described function f (l).
9. control gear according to claim 8, wherein, α increases along with the increase of described distance 1.
10. control gear according to claim 8, wherein, α reduces along with the increase of described distance 1.
11. control gear according to claim 8, wherein, regardless of described distance 1, α is a constant.
12. a speed changer comprises:
Gear comprises: input shaft, output shaft and be used to change the motor of the gear ratio between described input shaft and the described output shaft; And
Control section is used for estimating based on the rate of change of described gear ratio the calorie value of described motor.
13. a vehicle comprises the described speed changer of claim 12.
14. a controlling method that is used for gear, described gear comprises:
Input shaft;
Output shaft; And
Motor is used to change the gear ratio between described input shaft and the described output shaft;
Described controlling method comprises: based on the rate of change of described gear ratio, estimate the calorie value of described motor.
15. a method of estimating the calorie value of motor in the gear, described gear comprises:
Input shaft;
Output shaft; And
Motor is used to change the gear ratio between described input shaft and the described output shaft;
Described method comprises: based on the rate of change of described gear ratio, estimate the calorie value of described motor.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-022217 | 2007-01-31 | ||
| JP2007022217 | 2007-01-31 | ||
| JP2007022217 | 2007-01-31 | ||
| JP2007277115 | 2007-10-25 | ||
| JP2007277115A JP5406444B2 (en) | 2007-01-31 | 2007-10-25 | Transmission mechanism control device, transmission device, vehicle equipped with the same, transmission mechanism control method, and motor heat generation amount estimation method in transmission mechanism |
| JP2007-277115 | 2007-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101235894A true CN101235894A (en) | 2008-08-06 |
| CN101235894B CN101235894B (en) | 2011-09-28 |
Family
ID=39785452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100052424A Active CN101235894B (en) | 2007-01-31 | 2008-01-31 | Control apparatus, speed changer, vehicle, control method and method for estimating heat quantity value |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5406444B2 (en) |
| CN (1) | CN101235894B (en) |
| AT (1) | ATE538332T1 (en) |
| ES (1) | ES2377676T3 (en) |
| TW (1) | TWI335392B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09250631A (en) * | 1996-03-19 | 1997-09-22 | Nissan Motor Co Ltd | Shift control device of cvt |
| JP3659092B2 (en) * | 1999-11-05 | 2005-06-15 | 日産自動車株式会社 | Shift control device for continuously variable transmission |
| JP3766028B2 (en) * | 2001-04-04 | 2006-04-12 | 本田技研工業株式会社 | Control device for electric motor and control device for hybrid vehicle |
| JP3685146B2 (en) * | 2002-04-02 | 2005-08-17 | 日産自動車株式会社 | Control device for hybrid vehicle |
| JP4158925B2 (en) * | 2005-01-19 | 2008-10-01 | 三菱電機株式会社 | Transmission control device for motorcycles |
-
2007
- 2007-10-25 JP JP2007277115A patent/JP5406444B2/en active Active
- 2007-12-19 TW TW096148562A patent/TWI335392B/en active
-
2008
- 2008-01-15 AT AT08250188T patent/ATE538332T1/en active
- 2008-01-15 ES ES08250188T patent/ES2377676T3/en active Active
- 2008-01-31 CN CN2008100052424A patent/CN101235894B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TW200902884A (en) | 2009-01-16 |
| ATE538332T1 (en) | 2012-01-15 |
| JP5406444B2 (en) | 2014-02-05 |
| JP2008208987A (en) | 2008-09-11 |
| TWI335392B (en) | 2011-01-01 |
| ES2377676T3 (en) | 2012-03-29 |
| CN101235894B (en) | 2011-09-28 |
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