CN101298246A - Control device and method of hybrid vehicle - Google Patents

Abstract

There are provided a driving-state determination device to determine a driving state of a hybrid vehicle, and a driving-source selection device to select a driving source from an engine a first motor generator, and a second motor generator based on determination of the driving-state determination device so as to provide the highest driving efficiency as a whole of the vehicle. Herein, the first and second motor generators are configured so that a high-efficiency driving operation area of the first motor generator is set on a higher-speed side relative to a high-efficiency driving operation area of the second motor generator. Accordingly, there can be provided a control device of a hybrid vehicle that can improve the driving efficiency as a whole of the vehicle properly.

Description

The control setup of motor vehicle driven by mixed power and method

Technical field

The present invention relates to the control setup and the method for motor vehicle driven by mixed power, particularly can guarantee the control setup and the method for the propulsive effort and the motor vehicle driven by mixed power of the organic efficiency that improves kinetic force with two dynamotors (motorgenerator).

Background technology

In recent years, in vehicles such as automobile,, developed and used the motor vehicle driven by mixed power of driving engine and electrical motor from the viewpoint of low public hazards, resource-saving.

For example, open in the structure of 2000-295711 number (below be called patent documentation 1) record the open communique spy of Japanese Patent, employing is as the 1st, the 2nd electrical motor of drive source or the changeable use of electrical generator, according to operational situation by any electrical motor output torque or generating.The technology that is disclosed in the patent documentation 1 is by the electric energy generated that reduces each electrical motor or exports in the hope of improving the technology of energy efficiency.

When as described above at two electrical motors of combination and engine output torque, comparatively it is desirable to make the output characteristic of each electrical motor different, to be applicable to diversified operational situation.For example, if will the higher electrical motor of high rotary speed area efficient with made up at the higher electrical motor of low rotation speed area efficient, so, can improve vehicle single-piece efficient in bigger operation range.

Yet, in the structure that patent documentation 1 is put down in writing, the relevant technical task that adopts the different dynamotor of efficient, or adopt the different dynamotor of efficient to improve the technical task of vehicle single-piece efficient, do not obtain any solution.

On the other hand, two different dynamotors of allocative efficiency on same axle drive shaft in U.S. Patent bulletin US5289890 number, have been disclosed, with the technology that all can raise the efficiency at low speed and the arbitrary region at a high speed.

Yet, the conventional art be with electronlmobil (output vehicle propulsive effort only be electrical motor) be object, it is not considered and is applied to also be equipped with the so-called motor vehicle driven by mixed power of driving engine.

In motor vehicle driven by mixed power, thereby it is ideal to carry dynamotor with the bent axle with arbitrary dynamotor and the rotatable driving engine of driving engine direct connection.So, the 1st dynamotor that its rotating speed is subjected to the rotating speed domination of engine shaft just appears, the 2nd dynamotor that not influenced by the rotating speed of engine shaft with its rotating speed, but, relevantly make above-mentioned the 1st, the 2nd dynamotor have which kind of efficiency characteristic this technical task of being advisable separately, disclose in the prior art.

Summary of the invention

The present invention does in view of above-mentioned technical task, and its purpose is to provide a kind of motor vehicle driven by mixed power that can effectively improve vehicle single-piece efficient.

For achieving the above object, the control setup of motor vehicle driven by mixed power of the present invention is characterized in that, above-mentioned motor vehicle driven by mixed power possesses, to the driving engine of vehicle output torque; With the engine shaft direct connection of above-mentioned driving engine, can generate electricity also can be to the 1st dynamotor of above-mentioned vehicle output torque; Can generate electricity also can be to the 2nd dynamotor of above-mentioned vehicle output torque; By above-mentioned two dynamotors charging, and can be to the battery of above-mentioned two dynamotors power supply, above-mentioned control setup comprises, judges the operative condition judgement unit of the operative condition of above-mentioned vehicle; Judgement based on above-mentioned operative condition judgement unit, among above-mentioned driving engine and the 1st, the 2nd dynamotor, select the running object, so that vehicle single-piece efficient reaches the highest selected unit of drive source, wherein, the efficient of above-mentioned the 1st dynamotor reaches maximum work area, efficient than above-mentioned the 2nd dynamotor reaches maximum work area, is positioned at high rotating speed side.

In the technique scheme, adopt the 1st, the 2nd different dynamotor of efficiency operation zone, by the selected unit of drive source, any object in selected driving engine and each dynamotor, and when the dynamotor of selected at least any one party, reach maximum with the vehicle whole efficiency and select dynamotor, therefore, can make every effort to the optimum operation of drive source according to operative condition, improve vehicle single-piece efficient.Herein, be direct coupled the 1st dynamotor of rotating crank and engine shaft, when generating electricity or carrying out the torque power-assisted, its rotating speed is subjected to the situation of engine shaft rotating speed domination more, because the rotating speed of the engine shaft in the engine drive can not be lower than idling speed at least, therefore, compare with the 2nd dynamotor, its driving under high rotary speed area is more.Therefore, among the present invention, owing to will be set in the high rotating speed side in the efficiency operation zone that is higher than the 2nd dynamotor with the efficiency operation zone of direct coupled the 1st dynamotor of engine shaft, so vehicle integral body can be generated electricity or the torque power-assisted efficiently.

In the technique scheme, comparatively it is desirable to, above-mentioned driving engine and above-mentioned the 1st dynamotor, via change-speed box, be connected with the axle drive shaft of vehicle, above-mentioned drive source is selected the unit, at each converter speed ratio of above-mentioned change-speed box, judge the efficient of above-mentioned the 1st dynamotor, compare with the efficient of above-mentioned the 2nd dynamotor.Adopt this technical scheme, the drive source that the high speed that the 1st dynamotor improves pro rata as the rotating speed of efficient and driving engine can be used, simultaneously can judge the efficiency operation zone that changes with each converter speed ratio, compare with the efficient of the 2nd dynamotor, therefore can realize the optimization distribution that precision is higher.

In the technique scheme, comparatively it is desirable to, also comprise the converter speed ratio setup unit, this converter speed ratio setup unit, selected when above-mentioned driving engine does not drive under the situation of above-mentioned the 1st dynamotor in the selected unit of above-mentioned drive source, the efficient that the converter speed ratio of above-mentioned change-speed box is set in above-mentioned the 1st dynamotor reaches the highest gear.Adopt this technical scheme, owing to when driving engine does not turn round, set converter speed ratio so that the efficient of the 1st dynamotor reaches the highest, thereby vehicle single-piece efficient improves further.

In the technique scheme, comparatively it is desirable to, above-mentioned converter speed ratio setup unit has been selected under the situation of above-mentioned driving engine and above-mentioned the 1st dynamotor in the selected unit of above-mentioned drive source, and the burnup efficient of preferentially setting driving engine reaches the highest converter speed ratio.Adopt this technical scheme, in needing the operation range of engine running, override is considered the burnup efficient of driving engine.Here " having selected under the situation of driving engine and the 1st dynamotor " not only comprises the situation of only having selected driving engine and the 1st dynamotor, also comprises the situation of having selected driving engine and two dynamotors.

In the technique scheme, comparatively it is desirable to, the motor output shaft of above-mentioned the 2nd dynamotor is connected in the output shaft of above-mentioned change-speed box, be provided with the 1st power-transfer clutch between above-mentioned the 1st dynamotor and the above-mentioned change-speed box, the above-mentioned motor output shaft of above-mentioned the 2nd dynamotor is provided with the 2nd power-transfer clutch, in addition, also be provided with the clutch control unit, this clutch control unit, control the above-mentioned the 1st and the clutch action of the 2nd power-transfer clutch, during as drive source, to separate above-mentioned the 1st power-transfer clutch at only selected above-mentioned the 2nd dynamotor in the selected unit of above-mentioned drive source, with when the 2nd dynamotor is selected in releasing, separate above-mentioned the 2nd power-transfer clutch.Adopt this technical scheme, in the operation range that only has the 2nd dynamotor to drive (when mainly being the low speed starting, when retreating), need not to be subjected to the obstruction of driving engine or the 1st dynamotor, just can be with the transmission of torque of the 2nd dynamotor to drive wheel, and in the out-of-run operation range of the 2nd dynamotor (when mainly being the high speed running), need not to be subjected to the 2nd dynamotor obstruction, just can therefore can improve vehicle single-piece efficient with the transmission of torque of driving engine or the 1st dynamotor to drive wheel.

In the technique scheme, comparatively it is desirable to, also comprise, detect the 1st temperature detecting unit of the temperature of above-mentioned the 1st dynamotor; Detect the 2nd temperature detecting unit of the temperature of above-mentioned the 2nd dynamotor; And according to the state of temperature of each dynamotor of detection signal decidable of above-mentioned the 1st, the 2nd temperature detecting unit, and in the temperature of selected dynamotor is that assigned temperature is when above, the sharing of load of decision dynamotor, with under the situation of keeping the single-piece torque, reduce the induction-motor load allocation units of the load of the high dynamotor of temperature.Adopt this technical scheme, during the dynamotor running, if the temperature of dynamotor is in more than the assigned temperature, just determine the sharing of load of dynamotor, with load, therefore, can guarantee required torque at the higher dynamotor of the state decline low temperature of keeping the single-piece torque, especially can suppress the copper loss of dynamotor etc., keep single-piece efficient with small electric power.Here " load of dynamotor " be meant, the electric power that is supplied for output torque by for example dynamotor, torque or the required rotating speed that dynamotor needs for generating wait the physical quantity of setting.

In the technique scheme, comparatively it is desirable to, above-mentioned induction-motor load allocation units when big more, are reducing above-mentioned assigned temperature to the requirement of above-mentioned dynamotor load more.Adopt this technical scheme, when to the requirement of dynamotor load when big, the tendency that exists the temperature of dynamotor to rise and also increase thereupon, therefore, by corresponding to requiring load than lowland change assigned temperature, can suppress more effectively that Yin Wendu rises and the decrease in efficiency that causes.

In the technique scheme, comparatively it is desirable to, also comprise, detect the 1st rotation speed detection unit of the rotating speed of above-mentioned the 1st dynamotor; Check the 2nd rotation speed detection unit of the rotating speed of above-mentioned the 2nd dynamotor, above-mentioned induction-motor load allocation units, under the chosen situation of two dynamotors, and dynamotor all is warming up to assigned temperature when above arbitrarily, and the sharing of load of the dynamotor of the rotating speed higher side that above-mentioned rotation speed detection unit is measured improves.Adopt this technical scheme, can improve the sharing of load of the less dynamotor of copper loss, realize output efficiently.That is, for dynamotor, temperature is high more, and the copper loss when flowing through high electric current is big more, and the decrease in efficiency of dynamotor, copper loss are principal elements, therefore by improving the sharing of load of the higher dynamotor of rotating speed, can further suppress decrease in efficiency.

In addition, the control method of motor vehicle driven by mixed power of the present invention is characterized in that, described motor vehicle driven by mixed power possesses, to the driving engine of vehicle output torque; With the engine shaft direct connection of above-mentioned driving engine, can generate electricity also can be to the 1st dynamotor of above-mentioned vehicle output torque; Can generate electricity and can be, have and compare the 2nd dynamotor that reaches maximum work area in low rotation speed area efficient with above-mentioned the 1st dynamotor to above-mentioned vehicle output torque; Also can be by above-mentioned two dynamotors charging to the battery of above-mentioned two dynamotors power supply, described control method comprises, the 1st operation, selected running object from driving engine and the 1st, the 2nd dynamotor is so that vehicle single-piece efficient reaches the highest; The 2nd operation makes the running of driving engine selected in the 1st operation and dynamotor.Adopt the control method of this motor vehicle driven by mixed power, also can receive and the identical action effect of said apparatus invention essence.

Other feature, technical scheme, advantage etc. of the present invention is by the record below in conjunction with accompanying drawing, more clear and definite.

Description of drawings

Fig. 1 is the mode chart of summary structure that expression relates to the motor vehicle driven by mixed power of the present invention's the 1st embodiment.

Fig. 2 is the block scheme of the embodiment of Fig. 1.

Fig. 3 is the scheme drawing of the control chart determined by required torque and charge capacity.

Fig. 4 is the chart of expression by the definite driving engine burnup efficiency chart of torque and engine speed.

Fig. 5 is the chart of expression by the efficient work area of the 1st definite dynamotor of torque and motor speed.

Fig. 6 is the chart of expression by the efficient work area of the 2nd definite dynamotor of torque and motor speed.

Fig. 7 is the diagram of circuit of the running control example of expression when relating to the hybrid car travel of embodiment of Fig. 1.

Fig. 8 is diagram of circuit presentation graphs 7 and handle the processing example of subprogram with engine drive.

Fig. 9 is the diagram of circuit that the MG independent drive of presentation graphs 7 is handled the processing example of subprogram.

Figure 10 is the diagram of circuit that the driving engine independent drive of presentation graphs 7 is handled the processing example of subprogram.

Figure 11 is the diagram of circuit of processing example of the charging process subprogram of presentation graphs 7.

Figure 12 is the diagram of circuit that expression relates to the example that the regeneration of the embodiment of Fig. 1 handles.

Figure 13 relates to the block scheme of the present invention's the 2nd embodiment, and is suitable with Fig. 2 of the 1st embodiment.

Figure 14 is by the chart of the definite driving engine burnup efficiency chart of torque and engine speed in expression the 2nd embodiment.

Figure 15 is by the chart of the efficient work area of the 1st definite dynamotor of torque and motor speed in expression the 2nd embodiment.

Figure 16 is by the chart of the efficient work area of the 2nd definite dynamotor of torque and motor speed in expression the 2nd embodiment.

Figure 17 is the diagram of circuit of the running control example of expression when relating to the hybrid car travel of the present invention's the 2nd embodiment.

Figure 18 is the diagram of circuit of the running control example of expression when relating to the hybrid car travel of the present invention's the 2nd embodiment.

When Figure 19 is the low temperature of expression Figure 18 and handle the diagram of circuit of the processing example of subprogram with engine drive.

The MG independent drive was handled the diagram of circuit of the processing example of subprogram when Figure 20 was the low temperature of expression Figure 18.

Figure 21 is the diagram of circuit that the driving engine independent drive of expression Figure 17 is handled the processing example of subprogram.

When Figure 22 is the high temperature of expression Figure 18 and handle the diagram of circuit of the processing example of subprogram with engine drive.

The MG independent drive was handled the diagram of circuit of the processing example of subprogram when Figure 23 was the high temperature of expression Figure 18.

Figure 24 is the diagram of circuit of processing example of the charging process subprogram of expression Figure 17.

Figure 25 is the diagram of circuit of processing example of the charging process subprogram of expression Figure 17.

Figure 26 is the diagram of circuit of processing example of the charging process subprogram of expression Figure 17.

Figure 27 is the diagram of circuit that the regeneration of expression when relating to the deceleration of the 2nd embodiment is handled.

Figure 28 is the diagram of circuit that the regeneration of expression when relating to the deceleration of the 2nd embodiment is handled.

Figure 29 is the diagram of circuit that the regeneration of expression when relating to the deceleration of the 2nd embodiment is handled.

Figure 30 is the chart of the relation of assigned temperature and motor speed in expression the 2nd embodiment.

The specific embodiment

Below, with reference to accompanying drawing preferred implementation of the present invention is described.

The 1st embodiment

Fig. 1 is the mode chart of summary structure that expression relates to the motor vehicle driven by mixed power of the present invention's the 1st embodiment, and Fig. 2 is the block scheme of the embodiment of presentation graphs 1.

With reference to Fig. 1 and Fig. 2, motor vehicle driven by mixed power 1 is the vehicle of parallel connection type hybrid form that has driving engine 10 and the 1st, the 2nd dynamotor MG1, the MG2 as drive source and control the PCM (Powertrain ControlModule) 50 of these drive sources 10, MG1, MG2.

As shown in Figure 2, except that bent axle 11, driving engine 10 also has fuel injection valve 12 and flow regulating valve 14, light-up plug 15.Bent axle 11 is connected in the input shaft 17 of the change-speed box 16 of motor vehicle driven by mixed power 1 via the 1st dynamotor MG1 and the 1st power-transfer clutch Ch1.This change-speed box 16 can pass through change-speed box electromagnetic valve 18 switch speed ratio.And the output shaft 19 of change-speed box 16 is connected with modified roll mechanism 20, will be passed to drive wheel 22 from modified roll mechanism 20 from the power of driving engine 10 by axle drive shaft 21.

The 1st dynamotor MG1 is specialized by the electrical generator that is directly connected in bent axle 11.The 1st dynamotor MG1 can generate electricity the driving engine output from bent axle 11 as propulsion source, and can propulsive effort be exported to the input shaft 17 of change-speed box 16 via the 1st power-transfer clutch Ch1.Set up engine controller 31 on the 1st dynamotor MG1, controlled engine controller 31, thereby set the torque of electric energy generated and output by the control of PCM50.

The 2nd dynamotor MG2, by as the starting of vehicle 1, when retreating drive source and bear the electrical motor of deceleration energy recovery operation and specialized.The motor output shaft 32 exportable torque ground of the 2nd dynamotor MG2 are connected in the output shaft 19 of change-speed box 16 via the 2nd power-transfer clutch Ch2.On the 2nd dynamotor MG2, set up motor controller 33, the control motor controller 33 by the control of PCM50, thereby the torque of setting electric energy generated and being exported.

Each dynamotor MG1, MG2 are connected with battery 34.Battery 34 is accumulated the electric power that each dynamotor MG1, MG2 send simultaneously to each dynamotor MG1, MG2 power supply.And battery 34 is provided with in order to detect the battery sensor SW1 of charge capacity.Battery sensor SW1 is to detect the device of charge capacity by the electric current of monitoring battery 34 and voltage.

Motor vehicle driven by mixed power 1 is provided with well-known braking control system 35 (with reference to Fig. 2), can be by friction stopping device braking motor vehicle driven by mixed power 1 under the operative condition of appointment.

With reference to Fig. 2, motor vehicle driven by mixed power 1 is provided with battery sensor SW1, car speed sensor SW2, the acceleration pedal jaw opening sensor SW3 in order to detect operative condition, the various detecting sensors headed by the braking pressure sensor SW4, and the sensor SW1～SW4 is connected in PCM50 as input block.

On the other hand, fuel injection valve 12, flow regulating valve 14, light-up plug 15, change-speed box electromagnetic valve 18, engine controller 31, motor controller the 33, the 1st, the 2nd power-transfer clutch Ch1, Ch2 and braking control system 35, as output unit, be connected with PCM50.

PCM50 is the microprocessor that possesses CPU, memory device etc., reads detection signal from input block by program module, and the calculation of carrying out appointment is handled and exported control signal to output unit.In graphic example, PCM50 logicality ground constitutes operative condition judgement unit 51, the selected unit 52 of drive source, converter speed ratio setup unit 53, clutch control unit 54 and brak control unit 55.

Operative condition judgement unit 51 is judged the operative condition of motor vehicle driven by mixed power 1, for example judge whether want electric power storage maybe could charge according to the detection signal of battery sensor SW1, according to the detection signal of car speed sensor SW2 and acceleration pedal jaw opening sensor SW3 calculation operator's required torque, or the regenerative brake torque when slowing down with the detection signal calculation of braking pressure sensor SW4 according to car speed sensor SW2.

Driving engine 10 and the 1st, the 2nd dynamotor MG1, MG2 as drive source are selected according to the control chart M1～M5 that is stored in advance in the memory device in the selected unit 52 of drive source.Below, with reference to Fig. 3～Fig. 6 each control chart M1～M5 is described.

Fig. 3 is the scheme drawing of the control chart M1 that determined by required torque and charge capacity.

With reference to Fig. 3, the exportable torque of each dynamotor MG1, MG2 (below be also referred to as " assist torque ") is by charge capacity (SOC) decision of battery 34 (with reference to the chart of the upper right side of Fig. 3).In addition, each dynamotor MG1, MG2 produce cruising the time assist torque and the required torque proportional (with reference to the chart of Fig. 3 lower right side) of motor vehicle driven by mixed power 1., wait mode in advance by experiment herein,, shown in Fig. 3 left side, can obtain the assist torque figure that determines by required torque of vehicle and SOC by transform data figure with above-mentioned characteristic dataization.In the 1st embodiment, set the combination of required torque and SOC surplus based on a plurality of running regions of being cut apart by the contour line L1～L4 in this chart, be stored in the memory device as control chart M1, in view of the above, the selected unit 52 of drive source can according to the selected required drive source of operative condition (mainly being whether driving engine needs running).

Then, about selecting of dynamotor MG1, MG2, in the 1st embodiment, set control chart M2～M4 based on the chart of Fig. 4 and Fig. 5.

At first, Fig. 4 is the chart of expression by the definite driving engine burnup efficiency chart of torque and engine speed.In chart shown in Figure 4,, be set with a plurality of zones of determining by the relation of engine speed and torque by a plurality of contour line L11～L15 as the burnup efficient of driving engine 10.In the 1st embodiment, according to above-mentioned chart, combination with torque and engine speed in advance is stored in the memory device as control chart M2, thus can based on control chart M1 in the contrast of data, whether drive source selected unit 52 decisions need running engine 10.Herein, for burnup efficient, even if be identical torque, engine speed, also can be because of the converter speed ratio difference of change-speed box 16, therefore in control chart M2, be set with converter speed ratio diagram of curves G (the numeric representation gear in the diagram of curves) as shown in Figure 4, thereby can determine burnup efficient at each converter speed ratio.

Then, the efficiency operation zone to the 1st, the 2nd dynamotor MG1, MG2 describes.Herein, " efficiency operation zone " is meant, for example determining in the characteristic map of efficient most effective operation range according to torque and rotating speed.This efficiency operation zone is in the efficient work area that distributes in as Fig. 5, chart shown in Figure 6, the zone of selecting as the highest region territory.

Fig. 5 is the chart of expression by the efficient work area of the 1st definite dynamotor of torque and motor speed.With reference to Fig. 5, in the chart shown in this figure,, be set with a plurality of zones of determining by the relation of motor speed and torque by a plurality of contour line L21～L26 as the efficient of the 1st dynamotor MG1.In the 1st embodiment, according to above-mentioned chart, combination with torque and motor speed in advance is stored in the memory device as control chart M3, thus can based on following control chart M4 in the contrast of data, decision whether need to turn round the 1st, the 2nd dynamotor MG1, MG2 respectively.Herein, because of the 1st dynamotor MG1 and bent axle 11 direct connections, so efficiency operation zone (contour line L26 area inside) is set in the middling speed low-load region.In addition, because of the 1st dynamotor MG1 and bent axle 11 direct connections, so even if be identical torque, motor speed, the efficient of the 1st dynamotor MG1 also can be because of the converter speed ratio difference of change-speed box 16.Therefore, in control chart M3, be set with converter speed ratio diagram of curves G (the numeric representation gear in the diagram of curves) as shown in Figure 5, with the efficient of the 1st dynamotor MG that determines each converter speed ratio.

Fig. 6 is the chart of expression by the efficient work area of the 2nd definite dynamotor of torque and motor speed.

With reference to Fig. 6, in the chart shown in this figure,, be set with a plurality of zones of determining by the relation of motor speed and torque by a plurality of contour line L31～L34 as the efficient of the 2nd dynamotor MG2.In the 1st embodiment, according to above-mentioned chart, combination with torque and motor speed in advance is stored in the memory device as control chart M4, thereby can according to contrast based on the data among the control chart M3 of the chart of above-mentioned Fig. 5, decision whether need to turn round the 1st, the 2nd dynamotor MG1, MG2 respectively.Herein, because of the 2nd dynamotor MG2 mainly when the vehicle start or when retreating or in the light load operation range, use, so efficiency operation zone (contour line L34 area inside) is set in the low speed intermediate load region.

In addition, with each dynamotor MG1, when MG2 is used for energy regeneration, control chart M5 as the control charging capacity is stored in the memory device of PCM50, but this control chart M5 constructs with the method identical with control chart M1 illustrated in fig. 3 basically, therefore omits the description of contents to it.

Converter speed ratio setup unit 53 is based on above-mentioned control chart M2, M3, according to operative condition select with selecting a property gear determined by the burnup efficient of driving engine 10, with the gear of determining by the efficient work area of the 1st dynamotor MG1.As Fig. 4 and shown in Figure 5, in each control chart M2, M3, be set with converter speed ratio diagram of curves G, thereby can determine the burnup efficient of driving engine 10 or the efficient of the 1st dynamotor MG1 at each converter speed ratio.Therefore, in the 1st embodiment, when driving engine 10 and the 1st dynamotor MG1 use simultaneously as drive source, as described later shown in the diagram of circuit, the preferential burnup efficient of setting driving engine 10 reaches the highest gear, sets the program of converter speed ratio setup unit 53.Its result uses in driving engine 10 and the operation range of the 1st dynamotor MG1 as drive source at the same time, and motor vehicle driven by mixed power 1 just turns round under the burnup efficient of driving engine 10 reaches the highest state.

Clutch control unit 54 shown in the diagram of circuit, under the situation of driving engine 10 or the 1st dynamotor MG1 running, engages the 1st power-transfer clutch Ch1 as described later, under driving engine 10 and all out-of-run situation of the 1st dynamotor MG1, separates the 1st power-transfer clutch Ch1.In addition, under the situation of the 2nd dynamotor MG2 running, engage the 2nd power-transfer clutch Ch2, and under the out-of-run situation of the 2nd dynamotor MG2, separate the 2nd power-transfer clutch Ch2.

Select unit 52, converter speed ratio setup unit 53, reach clutch control unit 54 by above-mentioned operative condition judgement unit 51, drive source, the control of motor vehicle driven by mixed power 1 is just as shown in table 1 basically to be operated like that.

Table 1

Brak control unit 55, the result that the detection signal of pressure sensor SW4 is braked in 51 differentiations based on the operative condition judgement unit, control brake control system 35.

Then, relate to the running control example of the motor vehicle driven by mixed power of the 1st embodiment with reference to Fig. 7～Figure 12 explanation.

Fig. 7 is the diagram of circuit of the running control example of expression when relating to the hybrid car travel of embodiment of Fig. 1.With reference to Fig. 7, the diagram of circuit shown in this figure is the flow process of carrying out at the moment PCM50 of the ignition lock of connecting motor vehicle driven by mixed power 1.

After connecting ignition lock, the clutch control unit 54 of PCM50 makes the 1st, the 2nd power-transfer clutch Ch1, Ch2 reply initial condition (step S10).Under this initial condition, for example,, engage the 2nd power-transfer clutch Ch2 by separating the 1st power-transfer clutch Ch1, make in the propulsive effort input drive wheel 22 that the 2nd dynamotor MG2 is only arranged, come the controlling torque transmission system.Under this state, the operative condition judgement unit 51 of PCM50 reads battery sensor SW1, car speed sensor SW2, reaches the detection signal (step S11) of acceleration pedal jaw opening sensor SW3, calculates motor vehicle driven by mixed power 1 required torque (step S12) based on the detection signal from car speed sensor SW2 and acceleration pedal jaw opening sensor.

Subsequently, PCM50 judges whether need charging (step S13) based on the detection signal of the battery sensor SW1 that reads in step S11.If judge when needing charging, and then PCM50 judges whether required torque surpasses the critical value (step S14) of appointment.This judgement is because, each dynamotor MG1, MG2 are turned round as drive source, so only carry out charging process under the situation below the critical value of required torque in appointment largely above under the situation of critical value in required torque.In step S14, under the situation below the critical value of required torque in appointment, carry out charging process subprogram described later (step S50), control just moves on to step S18.

On the other hand, when the no charging requirement of judgement in step S13, or required torque surpasses when specifying critical value in step S14, just moves on to the flow process that each dynamotor MG1, MG2 are turned round as drive source.At this moment, PCM50 reads single-piece motor torque (step S15) according to the required torque and the charge capacity of the motor vehicle driven by mixed power 1 that calculates from control chart M1.

Then PCM50 judges whether turn round the 1st, the 2nd dynamotor MG1, MG2 (step S16).This judges, by the charge capacity that relatively reads from control chart M1 based on the chart of Fig. 3 with carry out based on charge capacity from the detection signal of battery sensor SW1.

Under the situation of judging running the 1st, the 2nd dynamotor MG1, MG2, and then PCM50 judges the operation range (step S17) that whether is in driving engine 10 output drive strengths.As shown in table 1, in starting, retreat or light load when running, driving engine 10 does not turn round, and motor vehicle driven by mixed power 1 only travels by the 2nd dynamotor MG2.Like this, driving engine 10 just uses in being expected to realize the rotary speed area of high burning efficiency, exhaust gas cleaningization.

If driving engine 10 is in the operative condition of output drive strength, just carries out and handle subprogram (step S20) with engine drive.On the other hand, not under the operative condition of output drive strength, the operating motor independent drive is handled subprogram (step S30) at driving engine 10.Among this external step S16, all not under the operative condition of output drive strength, carry out the driving engine independent drive and handle subprogram (step S40) at the 1st, the 2nd dynamotor MG1, MG2.

After each subprogram S20, S30, S40 were complete, PCM50 judged whether ignition lock becomes OFF state (step S18), as becomes then end process of OFF state, as did not become the OFF state and then get back to step S11 and carry out above-mentioned processing repeatedly.

Fig. 8 is diagram of circuit presentation graphs 7 and handle the processing example of subprogram (step S20) with engine drive.With reference to Fig. 8, and handle in the subprogram with engine drive, PCM50 reads the burnup efficient (step S201) of the driving engine 10 of each gear from the control chart M2 based on the chart of Fig. 4.Thereafter, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S202) of burnup based on the required torque that calculates in the step S12 of main program.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S202 with change-speed box 16.

Thereafter, the PCM50 basis is based on the control chart M3 of the chart of Fig. 5, read efficient, read the efficient (step S203) of the 2nd dynamotor MG2 simultaneously from control chart M4 based on the chart of Fig. 6 corresponding to the 1st dynamotor MG1 of the gear of setting among the step S202.By each efficient that reads in this step S203 is compared, PCM50 selectes dynamotor MG1, MG2 (step S204).

At this moment, PCM50 calculates best of breed efficient according to the gear of setting, selected dynamotor.Should " combined efficiency " be meant, for example with simplex method optimization methods such as (simplex method), will be corresponding to the efficient of the 1st dynamotor MG1 of selected gear and the efficient of the 2nd dynamotor MG2, according to the efficient after the calculating formula distribution of appointment, 1st, any one party or two sides among the 2nd dynamotor MG1, the MG2 are based on operative condition or charge capacity and chosen.

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

Particularly, at first PCM50 judges the dynamotor (step S205) of whether only selecting any one party.If any one party among only selected the 1st, the 2nd dynamotor MG1, the MG2, and then judge whether selected dynamotor is the 1st dynamotor MG1 (step S206).If the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S207).

On the other hand, in step S205, when selected dynamotor MG1, MG2 both, perhaps only selected the 2nd dynamotor MG2 is during as dynamotor, both are made as engagement state (step S208) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.

Subsequently, drive selected dynamotor (step S209), main program is just returned in control.

Fig. 9 is the diagram of circuit that the MG independent drive of presentation graphs 7 is handled the processing example of subprogram (step S30).With reference to Fig. 9, handle in the subprogram in the electrical motor independent drive, the PCM50 basis is based on the control chart M3 of the chart of Fig. 5, read efficient, read the efficient (step S301) of the 2nd dynamotor MG2 simultaneously from control chart M4 based on the chart of Fig. 6 corresponding to the 1st dynamotor MG1 of each gear.Each efficient that reads among this step S301 relatively, PCM50 selectes dynamotor MG1, MG2 (step S302).Then, judge whether selected dynamotor is the 1st dynamotor MG1 (step S303).Under the chosen situation of the 1st dynamotor MG1, the converter speed ratio setup unit 53 of PCM50 is set the gear (step S304) most effective for the 1st dynamotor MG1 based on the required torque that calculates in the step S12 of main program.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S302 with change-speed box 16.Subsequently, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S305).On the other hand, in step S303, be judged to be under the situation of NO, that is, and under the situation of selected the 2nd dynamotor MG2, the clutch control unit 54 of PCM50 is made as released state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as engagement state (step S306).

Behind execution in step S305 or the step S306, drive selected dynamotor (step S307), main program is just returned in control.

Figure 10 is the diagram of circuit that the driving engine independent drive of presentation graphs 7 is handled the processing example of subprogram (step S40).

With reference to Figure 10, in the driving engine independent drive was handled subprogram, PCM50 read the burnup efficient (step S401) of the driving engine 10 of each gear from the control chart M2 based on the chart of Fig. 4.Thereafter, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S402) of burnup based on the required torque that calculates in the step S12 of main program.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S402 with change-speed box 16.

Then, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S403).Subsequently, drive driving engine 10 (step S404), main program is just returned in control.

Figure 11 is the diagram of circuit of processing example of the charging process subprogram (step S50) of presentation graphs 7.

With reference to Figure 11, in the charging process subprogram, the PCM50 basis reads motor torque and motor torque (electric energy generated) (step S501) that each charge capacity determine from the charging based on the chart Fig. 3 with control chart M5 based on the required torque and the charge capacity of the execution result of step S11, the S12 of main program.

Then, PCM50 reads the burnup efficient (step S502) of the driving engine 10 of each gear from control chart M2.Then, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S503) of burnup.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S503 with change-speed box 16.

Then, PCM50 reads the efficient corresponding to the 1st dynamotor MG1 of the gear of setting among the step S503 based on control chart M3, reads the efficient (step S504) of the 2nd dynamotor MG2 simultaneously from control chart M4.Each efficient that reads among this step S504 relatively, PCM50 selectes dynamotor MG1, MG2 (step S505).At this moment, PCM50 calculates best of breed efficient according to the gear of setting, selected dynamotor.Thus, a certain side among the 1st, the 2nd dynamotor MG1, the MG2 or two sides, chosen based on operative condition or charge capacity.

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

At first, PCM50 judges the dynamotor (step S506) of whether only selecting any one party.If any one party among only selected the 1st, the 2nd dynamotor MG1, the MG2, and then judge whether selected dynamotor is the 1st dynamotor MG1 (step S507).If the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S508).

On the other hand, in step S505, when selected dynamotor MG1, MG2 both, perhaps only selected the 2nd dynamotor MG2 is during as dynamotor, both are made as engagement state (step S509) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.Subsequently, be that drive source drives selected dynamotor with generate electricity (step S510) with driving engine 10, main program is just returned in control.

Figure 12 is the diagram of circuit that expression relates to the example that the regeneration of the 1st embodiment handles.With reference to Figure 12, in the 1st embodiment, when in motor vehicle driven by mixed power 1 travels, needing to slow down, under the operative condition of appointment, utilize the braking of the 1st, the 2nd dynamotor MG1, MG2 execution carrying out motor vehicle driven by mixed power 1 and the regeneration of electric power storage to handle.

PCM50 at first reads the detection signal (step S60) that sensor SW4 is pressed in car speed sensor SW2 and braking in this regeneration is handled, to judge the processing of could regenerating.

Then, based on the detection signal of battery sensor SW1, judgement could be charged (step S61), and is excessive to avoid battery charge.During if can not charge, brak control unit 55 control brake control system 35 are carried out control of braking by friction stopping device, end process (step S62).

Under can electrically-charged situation, PCM50 presses according to the speed of a motor vehicle that reads among the step S60 and braking, calculates regenerative brake torque (step S63).Then, PCM50 reads the efficient corresponding to the 1st dynamotor MG1 of each gear based on control chart M3, reads the efficient (step S64) of the 2nd dynamotor MG2 simultaneously from control chart M4.Each efficient that reads among this step S64 relatively, PCM50 selectes dynamotor MG1, MG2 (step S65).

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

In regeneration was handled, PCM50 judged whether selected dynamotor is the 1st dynamotor MG1 (step S66).If the 1st dynamotor MG1, the converter speed ratio setup unit 53 of PCM50 is set the gear (step S67) most effective for the 1st dynamotor MG1.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S67 with change-speed box 16.

Then, PCM50 judges whether only selected the 1st dynamotor MG1 (step S68).

If be the 1st dynamotor MG1 only, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S69).Then, based on the braking of driving engine 10, battery 34 carries out electric power storage by the 1st dynamotor MG1.

On the other hand, in step S68, if the 2nd dynamotor MG2 also turns round, PCM50 calculates best of breed efficient (step S70) based on the gear of the 1st dynamotor that sets.Thereafter, the clutch control unit 54 of PCM50 is made as engagement state (step S71) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 these both.Thus, battery 34 charges by the 1st, the 2nd dynamotor MG1, MG2 these both.

In addition, dynamotor selected in step S66 only is under the situation of the 2nd dynamotor MG2, and the clutch control unit 54 of PCM50 is made as released state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as engagement state (step S72).Then, based on the braking of driving engine 10, battery 34 carries out electric power storage by the 2nd dynamotor MG2.

As above explanation, in the 1st embodiment, owing to adopt different the 1st, the 2nd dynamotor MG1, the MG2 in efficiency operation zone, by the selected unit 52 of drive source, any object among selected driving engine 10 and each dynamotor MG1, MG2, and when the dynamotor of selected at least any one party, reach maximum with motor vehicle driven by mixed power 1 single-piece efficient and select dynamotor, therefore, can be according to operative condition, make every effort to the optimum operation of drive source, improve motor vehicle driven by mixed power 1 single-piece efficient.Herein, be rotating crank and bent axle 11 direct coupled the 1st dynamotor MG1, when generating electricity or carrying out the torque power-assisted, its rotating speed is subjected to the situation of bent axle 11 rotating speeds domination more, because the rotating speed of the bent axle 11 in the engine drive can not be lower than idling speed at least, therefore, compare with the 2nd dynamotor MG2, its driving under high rotary speed area is more.Therefore, in the 1st embodiment, owing to will be set in the high rotating speed side that is higher than the 2nd dynamotor MG2 with the efficiency operation zone of bent axle 11 direct coupled the 1st dynamotor MG1, so vehicle integral body can be generated electricity or the torque power-assisted efficiently.

In addition, in the 1st embodiment, driving engine 10 and the 1st dynamotor MG1, be connected in the modified roll mechanism 20 of motor vehicle driven by mixed power 1 via change-speed box 16, the efficient of the 1st dynamotor MG1 is judged at each converter speed ratio of change-speed box 16 in the selected unit 52 of drive source, compares with the efficient of the 2nd dynamotor MG2.Therefore, in the 1st embodiment, the drive source that the high speed that the 1st dynamotor MG1 improves pro rata as the rotating speed of efficient and driving engine 10 can be used, simultaneously can judge the efficiency operation zone that changes with each converter speed ratio, compare with the efficient of the 2nd dynamotor MG2, therefore can realize the optimization distribution that precision is higher.

In addition, in the 1st embodiment, also comprise converter speed ratio setup unit 53, this converter speed ratio setup unit 53 has been selected when driving engine 10 does not drive under the situation of the 1st dynamotor MG1 in the selected unit 52 of drive source, and the efficient that the converter speed ratio of above-mentioned change-speed box 16 is set at above-mentioned the 1st dynamotor MG1 reaches the highest gear.Therefore, in the 1st embodiment, when driving engine 10 does not turn round, set converter speed ratio so that the efficient of the 1st dynamotor MG1 reaches the highest, thereby motor vehicle driven by mixed power 1 single-piece efficient improves further.

In addition, in the 1st embodiment, converter speed ratio setup unit 53 has been selected under the situation of driving engine 10 and the 1st dynamotor MG1 in the selected unit 52 of drive source, and the burnup efficient of preferentially setting driving engine 10 reaches the highest converter speed ratio.Therefore, in the 1st embodiment, in the operation range that needs driving engine 10 runnings, override is considered the burnup efficient of driving engine 10.Herein, " having selected under the situation of driving engine 10 and the 1st dynamotor MG1 " is to comprise carrying out shown in Figure 8 and when handling subprogram with engine running the notion when having selected driving engine 10 and two dynamotor MG1, MG2.

In addition, in the 1st embodiment, the motor output shaft 32 of the 2nd dynamotor MG2 is connected in the output shaft 19 of change-speed box 16, be provided with the 1st power-transfer clutch Ch1 between the 1st dynamotor MG1 and the change-speed box 16, the motor output shaft 32 of the 2nd dynamotor MG2 is provided with the 2nd power-transfer clutch Ch2, in addition, also be provided with the clutch control unit 54 of the clutch action of control the 1st and the 2nd power-transfer clutch Ch2, when only selecting the 2nd dynamotor MG2 (when driving engine 10 does not turn round yet) as drive source to select unit 52 at drive source, separate the 1st power-transfer clutch Ch1, with when the 2nd dynamotor MG2 is selected in releasing, separate the 2nd power-transfer clutch Ch2.Therefore, in the 1st embodiment, in the operation range that only has the 2nd dynamotor MG2 to drive (when mainly being the low speed starting, when retreating) in, need not to be subjected to the obstruction of driving engine 10 or the 1st dynamotor MG1, just can be with the transmission of torque of the 2nd dynamotor MG2 to axle drive shaft 21, and in the out-of-run operation range of the 2nd dynamotor MG2 (when mainly being the high speed running), need not to be subjected to the obstruction of the 2nd dynamotor MG2, just can therefore can improve motor vehicle driven by mixed power 1 single-piece efficient with the transmission of torque of driving engine 10 or the 1st dynamotor MG1 to axle drive shaft 21.

The 2nd embodiment

Then to describing from Figure 13 to the 2nd embodiment shown in Figure 29.Figure 13 relates to the block scheme of the present invention's the 2nd embodiment, and is suitable with Fig. 2 of the 1st embodiment.In addition, in the following description, to the component part mark identical symbol identical with the 1st embodiment, and the repetitive description thereof will be omitted.

At first, in the 2nd embodiment,, be set with control chart M6 based on the chart of Figure 30 about selecting of dynamotor MG1, MG2.

Figure 30 is the chart of the relation of expression assigned temperature and motor speed.

With reference to Figure 30, dynamotor MG1, MG2 rise to the reduction of high-temperature aging rate usually.Therefore, in the present embodiment, as shown in the figure, temperature by the auxiliary torque of motor speed or dynamotor MG1, MG2 (below be also referred to as " assist torque ") decision gives datumization as assigned temperature, and be stored among the PCM50 in advance, thereby can set assigned temperature T with respect to full assist torque as figure _ST

Herein, in the present embodiment, the assigned temperature when assist torque is maxim is made as T _Min, so, above-mentioned assist torque amount is few more, assigned temperature T _STHigh more.More specifically, assist torque is 0 o'clock assigned temperature T _STBe about 90 ℃, and the assigned temperature T of assist torque when being maxim _MinBe about 80 ℃.

Then, about selecting of dynamotor MG1, MG2, in the 2nd embodiment, be set with control chart M10, M11 based on the chart of Figure 14 and Figure 15.

Figure 14 is the chart of expression by the definite driving engine burnup efficiency chart of torque and engine speed, is the figure identical with Fig. 4 essence of the 1st embodiment.

Then, the efficiency operation zone to the 1st, the 2nd dynamotor MG1, MG2 describes.Herein, " efficiency operation zone " is meant, for example determined in the characteristic map of efficient most effective operation range by torque and rotating speed.This efficiency operation zone is in the efficient work area that distributes in as Figure 15, chart shown in Figure 16, the zone of selecting as the highest region territory.

Figure 15 is by the chart of the efficient work area of the 1st definite dynamotor of torque and motor speed in expression the 2nd embodiment.

With reference to Figure 15, in the chart shown in this figure,, be set with a plurality of zones of determining by the relation of motor speed and torque by a plurality of contour line L21～L26 as the efficient of the 1st dynamotor MG1.In the 2nd embodiment, according to above-mentioned chart, combination with torque and motor speed in advance is stored in the memory device as control chart M11, thus can based on following control chart M12 in the contrast of data, decision whether need to turn round the 1st, the 2nd dynamotor MG1, MG2 respectively.Herein, because of the 1st dynamotor MG1 and bent axle 11 direct connections, so efficiency operation zone (contour line L26 area inside) is set in the middling speed low-load region.In addition, because of the 1st dynamotor MG1 and bent axle 11 direct connections, so even if be identical torque, motor speed, the efficient of the 1st dynamotor MG1 also can be because of the converter speed ratio difference of change-speed box 16.Therefore, in control chart M11, be set with converter speed ratio diagram of curves G (the numeric representation gear in the diagram of curves) as shown in figure 15, to determine the burnup efficient of each converter speed ratio.

Figure 16 is by the chart of the efficient work area of the 2nd definite dynamotor of torque and motor speed in expression the 2nd embodiment.

With reference to Figure 16, in the chart shown in this figure,, be set with a plurality of zones of determining by the relation of motor speed and torque by a plurality of contour line L31～L34 as the efficient of the 2nd dynamotor MG2.In the 2nd embodiment, according to above-mentioned chart, combination with torque and motor speed in advance is stored in the memory device as control chart M12, thereby can according to contrast based on the data among the control chart M11 of the chart of above-mentioned Figure 15, decision whether need to turn round the 1st, the 2nd dynamotor MG1, MG2 respectively.Herein, because of the 2nd dynamotor MG2 mainly when the vehicle start or when retreating or in the light load operation range, use, so efficiency operation zone (contour line L34 area inside) is set in the low speed intermediate load region.

In addition, in view of the efficient of each dynamotor MG1, MG2 changes with temperature, each control chart M11, M12 in the 2nd embodiment constitute the multidimensional figure with temperature axis T, thus each temperature can be at running the time, and change is by the torque of rotating speed decision.

Converter speed ratio setup unit 53, based on above-mentioned control chart M10, M11, according to operative condition select with selecting a property gear determined by the burnup efficient of driving engine 10, with the gear of determining by efficient work area and the temperature of the 1st dynamotor MG1.As Figure 14 and shown in Figure 15, in each control chart M10, M11, be set with converter speed ratio diagram of curves G, thereby can determine the burnup efficient of driving engine 10 or the efficient of the 1st dynamotor MG1 at each converter speed ratio.Therefore, in the 2nd embodiment, when driving engine 10 and the 1st dynamotor MG1 used simultaneously as drive source, shown in the diagram of circuit, the burnup efficient of preferentially setting driving engine 10 reached the program that the highest gear is set converter speed ratio setup unit 53 as described later.Its result uses in driving engine 10 and the operation range of the 1st dynamotor MG1 as drive source at the same time, and motor vehicle driven by mixed power 1 just turns round under the burnup efficient of driving engine 10 reaches the highest state.

Then relate to the running control example of the motor vehicle driven by mixed power of the 2nd embodiment with reference to Figure 17～Figure 29 explanation.

Figure 17 and Figure 18 are the diagram of circuits of the running control example of expression when relating to the hybrid car travel of the present invention's the 2nd embodiment.

With reference to Figure 17, the diagram of circuit shown in this figure is the flow process of carrying out at the moment PCM50 of the ignition lock of connecting motor vehicle driven by mixed power 1.

After connecting ignition lock, with the 1st embodiment in the same manner, the processing of PCM50 execution in step S10～step S16.

In step S14, when required torque is the critical value of appointment when following, carry out charging process subprogram described later (step S150), control just moves on to step S18.

In addition, in step S16, when being judged to be any object of running among the 1st, the 2nd dynamotor MG1, the MG2, PCM50 just makes control move on to flow process below Figure 18.

On the other hand, under all out-of-run operative condition of the 1st, the 2nd dynamotor MG1, MG2, carry out the driving engine independent drive and handle subprogram (step S140).

After carrying out the driving engine independent drive and handling subprogram (step S140), PCM50 judges whether ignition lock becomes OFF state (step S18), as becomes then end process of OFF state, as does not become the OFF state and then get back to step S11 and carry out above-mentioned processing repeatedly.

Then, in the operation range of dynamotor MG1, MG2 work arbitrarily,, set assigned temperature T according to control chart M6 at first based on the single-piece assist torque with reference to Figure 18 _ST(step S100).Then, read the detection signal (step S101) of the 1st, the 2nd temperature sensor SW5, SW6, judge whether detected temperatures T1, the T2 of each dynamotor MG1, MG2 do not reach the assigned temperature T of setting _ST(step S102).All do not reach the assigned temperature T of setting in the detected temperatures of dynamotor MG1, MG2 _STSituation under, PCM50 judges the operation range (step S103) that whether is in driving engine 10 output drive strengths, under the situation of the operation range that is in driving engine 10 output drive strengths, handle subprogram (step S120) when carrying out low temperature and with engine drive, be in driving engine 10 not under the situation of the operation range of output drive strength, the dynamotor independent drive is handled subprogram (step S130) when carrying out low temperature, afterwards, moves on to the control of step 18.

In step S102, any object in judging the 1st, the 2nd dynamotor MG1, MG2 reaches assigned temperature T _STDuring the above condition of high temperature, PCM50 judges dynamotor MG1, MG2, and whether both all reach assigned temperature T _STThe above condition of high temperature (step S105).

In step S105, when dynamotor does not arbitrarily reach assigned temperature T _STThe time, the induction-motor load allocation units 56 of PCM50 are based on detected temperature, and change surpasses assigned temperature T _STPerson's control chart (a certain side among M11, the M12) (step S106).By the setting change (being the displacement of the coordinate of temperature axis T) of this control chart, the side's that reaches a high temperature dynamotor is judged as the poorer person of efficient, and its operation factor descends.

In step S105, when judging that dynamotor is all above assigned temperature T arbitrarily _STThe time, PCM50 judges the operation range (step S107) that whether is in driving engine 10 output drive strengths, if be in the operation range of driving engine 10 output drive strengths, handle subprogram (step S220) when carrying out high temperature and with engine drive, if be in the not operation range of output drive strength of driving engine 10, the dynamotor independent drive is handled subprogram (step S230) when carrying out high temperature, afterwards, moves on to the control of step 18.

When Figure 19 is the low temperature of expression Figure 18 and handle the diagram of circuit of the processing example of subprogram (step S120) with engine drive.

With reference to Figure 19, when low temperature and with engine drive, handle in the subprogram, PCM50 reads the burnup efficient (step S121) of the driving engine 10 of each gear from the control chart M10 based on the chart of Figure 14.Thereafter, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S122) of burnup based on the required torque that calculates in the step S12 of main program.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S122 with change-speed box 16.

Thereafter, the PCM50 basis is based on the control chart M11 of the chart of Figure 15, read efficient, read the efficient (step S123) of the 2nd dynamotor MG2 simultaneously from control chart M12 based on the chart of Figure 16 corresponding to the 1st dynamotor MG1 of the gear of setting among the step S122.Each efficient that reads among this step S123 relatively, PCM50 selectes dynamotor MG1, MG2 (step S124).

At this moment, PCM50 calculates best of breed efficient according to the gear of setting, selected dynamotor.Should " combined efficiency " be meant, for example with optimization methods such as simplex methods, will be corresponding to the efficient of the 1st dynamotor MG1 of selected gear stage and the efficient of the 2nd dynamotor MG2, according to the efficient after the calculating formula distribution of appointment, 1st, any one party or two sides among the 2nd dynamotor MG1, the MG2 are based on operative condition or charge capacity and chosen.

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

At first, PCM50 judges the dynamotor (step S125) of whether only selecting any one party.If any one party among only selected the 1st, the 2nd dynamotor MG1, the MG2, and then judge whether selected dynamotor is the 1st dynamotor MG1 (step S126).If the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S127).

On the other hand, when among the step S125 be judged to be NO the time, promptly, selected dynamotor MG1, MG2 both the time, perhaps when among the step S126 be judged to be NO the time, that is, only selected the 2nd dynamotor MG2 is during as dynamotor, and both are made as engagement state (step S128) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.

Subsequently, drive selected dynamotor (step S129), main program is just returned in control.

The MG independent drive was handled the diagram of circuit of the processing example of subprogram (step S130) when Figure 20 was the low temperature of expression Figure 18.

With reference to Figure 20, the electrical motor independent drive is handled in the subprogram when low temperature, the PCM50 basis is based on the control chart M11 of the chart of Figure 15, read efficient, read the efficient (step S131) of the 2nd dynamotor MG2 simultaneously from control chart M12 based on the chart of Figure 16 corresponding to the 1st dynamotor MG1 of each gear.Each efficient that reads among this step S131 relatively, PCM50 selectes dynamotor MG1, MG2 (step S132).

Then, judge whether select the 1st dynamotor MG1 (step S133).Under the situation of selected the 1st dynamotor MG1, the converter speed ratio setup unit 53 of PCM50 is set the gear (step S134) most effective for the 1st dynamotor MG1 based on the required torque that calculates in the step S12 of main program.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S132 with change-speed box 16.Then, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S135).

On the other hand, in step S133, be judged to be under the situation of NO, that is, and under the situation of selected the 2nd dynamotor MG2, the clutch control unit 54 of PCM50 is made as released state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as engagement state (step S136).

Behind execution in step S135 or the step S136, drive selected dynamotor (step S137), main program is just returned in control.

Figure 21 is the diagram of circuit that the driving engine independent drive of expression Figure 17 is handled the processing example of subprogram (step S140).

With reference to Figure 21, in the driving engine independent drive was handled subprogram, PCM50 read the burnup efficient (step S141) of the driving engine 10 of each gear from the control chart M10 based on the chart of Figure 14.

Thereafter, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S142) of burnup based on the required torque that calculates in the step S12 of main program.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S142 with change-speed box 16.

Then, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S143).

Subsequently, drive driving engine 10 (step S144), main program is just returned in control.

When Figure 22 is the high temperature of expression Figure 18 and handle the diagram of circuit of the processing example of subprogram (step S220) with engine drive.

With reference to Figure 22, when high temperature and with engine drive, handle in the subprogram, PCM50 reads the burnup efficient (step S221) of the driving engine 10 of each gear from the control chart M10 based on the chart of Figure 24.Thereafter, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S222) of burnup based on the required torque that calculates in the step S22 of main program.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S222 with change-speed box 16.

Thereafter, the PCM50 basis is based on the control chart M11 of the chart of Figure 15, read torque, simultaneously the torque (step S223) of reading the 2nd dynamotor MG2 from control chart M12 based on the chart of Figure 16 corresponding to the 1st dynamotor MG1 of the gear of setting among the step S222.Based on each torque of reading in this step S223, PCM50 calculates best combined efficiency, thus selected dynamotor (step S224).Should be selected, with optimization methods such as simplex methods, based on the calculating formula of appointment, by being carried out to carrying out optimal allocation with respect to the rotating speed of the required torque of the 1st dynamotor MG1 and rotating speed with respect to the required torque of the 2nd dynamotor MG2.By this step, any one party among the 1st, the 2nd dynamotor MG1, the MG2 or two sides are based on rotating speed and chosen.Thus, when both are in high temperature as dynamotor MG1, MG2, and are in and use at least in the operation range of a certain side among dynamotor MG1, the MG2, also can farthest suppress the decline of efficient, guarantee required torque.

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

At first, PCM50 judges the dynamotor (step S225) of whether only selecting any one party.If any one party among only selected the 1st, the 2nd dynamotor MG1, the MG2, PCM50 judges whether selected dynamotor is the 1st dynamotor MG1 (step S226).If the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S227).

On the other hand, when among the step S225 be judged to be NO the time, promptly, selected dynamotor MG1, MG2 both the time, perhaps when among the step S226 be judged to be N0 the time, that is, only selected the 2nd dynamotor MG2 is during as dynamotor, and both are made as engagement state (step S228) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.

Subsequently, drive selected dynamotor (step S229), main program is just returned in control.

The MG independent drive was handled the diagram of circuit of the processing example of subprogram (step S230) when Figure 23 was the high temperature of expression Figure 18.

With reference to Figure 23, the electrical motor independent drive is handled in the subprogram when high temperature, the PCM50 basis is based on the control chart M11 of the chart of Figure 15, read torque, simultaneously the torque (step S231) of reading the 2nd dynamotor MG2 from control chart M12 based on the chart of Figure 16 corresponding to the 1st dynamotor MG1 of each gear.Based on each torque of reading in above-mentioned steps S231, induction-motor load allocation units 56 selected dynamotor MG1, the MG2 of PCM50 are so that the torque distribution of rotating speed the higher person increases (step S232).Thus, even if both are in hi-heat operation range dynamotor MG1, MG2, the sharing of load of the dynamotor by raising the efficiency higher side (in other words by the low side that lowers efficiency sharing of load) can farthest suppress the decline of efficient, guarantees required torque.

Then, judge whether selected dynamotor is the 1st dynamotor MG1 (step S233).Under the situation of selected the 1st dynamotor MG1, the converter speed ratio setup unit 53 of PCM50 is set the gear (step S234) most effective for the 1st dynamotor MG1.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S232 with change-speed box 16.Then, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S235).

On the other hand, in step S233, be judged to be under the situation of NO, that is, and under the situation of selected the 2nd dynamotor MG2, the clutch control unit 54 of PCM50 is made as released state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as engagement state (step S236).

Behind execution in step S235 or the step S236, drive selected dynamotor (step S237), main program is just returned in control.

Figure 24～Figure 26 is the diagram of circuit of processing example of the charging process subprogram (step S150) of expression Figure 17.

At first with reference to Figure 24, in the charging process subprogram, the PCM50 basis reads motor torque and the motor torque of determining at each charge capacity (electric energy generated) (step S151) based on the required torque and the charge capacity of the execution result of step S11, the S12 of main program from charging with control chart M5.Then PCM50 sets assigned temperature (step S152) based on the single-piece assist torque according to control chart M6.Then, read the detection signal (step S153) of the 1st, the 2nd temperature sensor SW5, SW6, judge whether detected temperatures T1, the T2 of each dynamotor MG1, MG2 does not reach the assigned temperature T that sets _ST(step S154).If detected temperatures T1, the T2 of dynamotor MG1, MG2 all do not reach the assigned temperature T of setting arbitrarily _ST, PCM50 carries out step shown in Figure 25.

On the other hand, in step S154, reach assigned temperature T if judge any object among the 1st, the 2nd dynamotor MG1, the MG2 _STThe above condition of high temperature, PCM50 judges dynamotor MG1, MG2, and whether both all reach assigned temperature T _STThe above condition of high temperature (step S155).

In step S155, do not reach assigned temperature T at dynamotor arbitrarily _STSituation under, the induction-motor load allocation units 56 of PCM50 are based on detected temperature, change surpasses assigned temperature T _STPerson's control chart (a certain side among M11, the M12) (step S156).By the setting change of this control chart, the side's that reaches a high temperature dynamotor is judged as the poorer person of efficient, and its operation factor descends.

In step S155, judging that dynamotor is all above assigned temperature T arbitrarily _STSituation under, PCM50 carries out step shown in Figure 26.

Then, with reference to Figure 25, in the step S154 of Figure 24, do not reach assigned temperature T in the temperature of dynamotor MG1, MG2 arbitrarily _STSituation under, PCM50 reads the burnup efficient (step S1502) of the driving engine 10 of each gear from control chart M10.Then, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S1503) of burnup.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S1503 with change-speed box 16.

Then, PCM50 reads the efficient corresponding to the 1st dynamotor MG1 of the gear of setting among the step S1503 based on control chart M11, reads the efficient (step S1504) of the 2nd dynamotor MG2 simultaneously from control chart M12.Each efficient that reads among this step S1504 relatively, PCM50 selectes dynamotor MG1, MG2 (step S1505).At this moment, PCM50 calculates best of breed efficient according to the gear of setting, selected dynamotor.Thus, any one party among the 1st, the 2nd dynamotor MG1, the MG2 or two sides are based on operative condition or charge capacity and chosen.In addition, by the step S156 of Figure 24, for reaching assigned temperature T _STAbove dynamotor because its control chart changes to the lower control chart of efficient, thereby in this step S1505, is carried out the selected or sharing of load of dynamotor, to raise the efficiency the load of higher dynamotor.

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

At first, PCM50 judges the dynamotor (step S1506) of whether only selecting any one party.If any one party among only selected the 1st, the 2nd dynamotor MG1, the MG2, and then judge whether selected dynamotor is the 1st dynamotor MG1 (step S1507).If the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S1508).

On the other hand, when among the step S1506 be judged to be NO the time, promptly, selected dynamotor MG1, MG2 both the time, perhaps when among the step S126 be judged to be NO the time, that is, only selected the 2nd dynamotor MG2 is during as dynamotor, and both are made as engagement state (step S1509) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.

Subsequently, be that drive source drives selected dynamotor with generate electricity (step S1510) with driving engine 10, main program is just returned in control.

Then, with reference to Figure 26, in the step S155 of Figure 24, be assigned temperature T in the temperature of dynamotor MG1, MG2 arbitrarily _STUnder the above situation, PCM50 reads the burnup efficient (step S1512) of the driving engine 10 of each gear from control chart M10.Then, the converter speed ratio setup unit 53 of PCM50 is set the most effective gear (step S1513) of burnup.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S1513 with change-speed box 16.

Then, PCM50 reads the torque corresponding to the 1st dynamotor MG1 of the gear of setting among the step S1513 based on control chart M11, reads the torque (step S1514) of the 2nd dynamotor MG2 simultaneously from control chart M12.Based on each torque of in above-mentioned steps S1514, reading, the induction-motor load allocation units 56 of PCM50, according to the speed change retaining that sets, selected dynamotor MG1, MG2 are so that the torque distribution of rotating speed the higher person increases (step S1515).Thus, any one party among the 1st, the 2nd dynamotor MG1, the MG2 or two sides are just based on rotating speed and chosen.The dynamotor running selected by this, that copper loss is less on the whole, both can be guaranteed required torque, can prevent the waste of energy that causes because of decrease in efficiency again.

Then, PCM50 judges the dynamotor (step S1516) of whether only selecting any one party.If any one party among only selected the 1st, the 2nd dynamotor MG1, the MG2 judges whether selected dynamotor is the 1st dynamotor MG1 (step S1517).If the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S1518).

On the other hand, when among the step S1516 be judged to be NO the time, promptly, selected dynamotor MG1, MG2 both the time, perhaps when among the step S1517 be judged to be NO the time, that is, only selected the 2nd dynamotor MG2 is during as dynamotor, and both are made as engagement state (step S1519) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.

Subsequently, drive selected dynamotor (step S1520), main program is just returned in control.

Figure 27～Figure 29 is the diagram of circuit that the regeneration of expression when relating to the deceleration of the 2nd embodiment is handled.

With reference to Figure 27, in the 2nd embodiment, similarly, when in motor vehicle driven by mixed power 1 travels, needing to slow down, under the operative condition of appointment, utilize the braking of the 1st, the 2nd dynamotor MG1, MG2 execution carrying out motor vehicle driven by mixed power 1 and the regeneration of electric power storage to handle.

PCM50 at first reads the detection signal (step S160) that sensor SW4 is pressed in car speed sensor SW2 and braking in this regeneration treatment step, to judge the processing of could regenerating.

Then, based on the detection signal of battery sensor SW1, judgement could be charged (step 1S61), and is excessive to avoid battery charge.If can not charge, brak control unit 55 control brake control system 35 are carried out control of braking by friction stopping device, end process (step S162).

Under can electrically-charged situation, PCM50 presses according to the speed of a motor vehicle that reads among the step S160 and braking, calculates regenerative brake torque (step S163).Then PCM50 sets assigned temperature T based on the single-piece regenerative brake torque according to control chart M6 _ST(step S164).Then, read the detection signal (step S165) of the 1st, the 2nd temperature sensor SW5, SW6, judge whether detected temperatures T1, the T2 of each dynamotor MG1, MG2 does not reach the assigned temperature T that sets _ST(step S166).If detected temperatures T1, the T2 of dynamotor MG1, MG2 all do not reach the assigned temperature T of setting arbitrarily _ST, PCM50 carries out step shown in Figure 28.

On the other hand, in step S166, any object in judging the 1st, the 2nd dynamotor MG1, MG2 reaches assigned temperature T _STDuring the above condition of high temperature, PCM50 judges whether dynamotor MG1, MG2 both sides all reach assigned temperature T _STThe above condition of high temperature (step S167).

In step S167, when dynamotor does not arbitrarily reach assigned temperature T _STThe time, the induction-motor load allocation units 56 of PCM50 are based on detected temperature, and change surpasses assigned temperature T _STPerson's control chart (a certain side among M11, the M12) (step S168).By the setting change of this control chart, the side's that reaches a high temperature dynamotor is judged as the poorer person of efficient, and its operation factor descends.

In step S167, judge that dynamotor is all above assigned temperature T arbitrarily _STSituation under, PCM50 carries out step shown in Figure 29.

Then, with reference to Figure 28, in the judgement of the step S167 of Figure 27, all do not reach assigned temperature T in the detected temperatures of dynamotor MG1, MG2 arbitrarily _STSituation under, PCM50 reads efficient corresponding to the 1st dynamotor MG1 of each gear based on control chart M11, reads the efficient (step S170) of the 2nd dynamotor MG2 simultaneously from control chart M12.Each efficient that reads among this step S170 relatively, PCM50 carries out selected (sharing of load) (step S171) of dynamotor MG1, MG2.

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

In regeneration was handled, PCM50 judged whether comprise the 1st dynamotor MG1 (step S172).If the 1st dynamotor MG1, the converter speed ratio setup unit 53 of PCM50 is set the gear (step S173) most effective for the 1st dynamotor MG1.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S173 with change-speed box 16.

Then, PCM50 judges whether only selected the 1st dynamotor MG1 (step S174).

If when only being the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S175).Then, based on the braking of driving engine 10, battery 34 carries out electric power storage by the 1st dynamotor MG1.

On the other hand, when among the step S174 be judged to be NO the time, that is, when the 2nd dynamotor MG2 also turned round, both were made as engagement state (step S176) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.So both battery 34 charge by the 1st, the 2nd dynamotor MG1, MG2.

In addition, when among the step S172 be judged to be NO the time, that is, and when selected dynamotor only is the 2nd dynamotor MG2 in step S171, the clutch control unit 54 of PCM50 is made as released state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as engagement state (step S177).Then, based on the braking of driving engine 10, battery 34 carries out electric power storage by the 2nd dynamotor MG2.

Then, with reference to Figure 29, in the judgement of the step S167 of Figure 27, the detected temperatures of dynamotor MG1, MG2 is all at assigned temperature T arbitrarily _STWhen above, the selected unit 52 of the drive source of PCM50 reads torque corresponding to the 1st dynamotor MG1 of each gear, the torque (step S180) of reading the 2nd dynamotor MG2 simultaneously from control chart M12 based on control chart M11.Based on each torque of reading in this step S180, induction-motor load allocation units 56 selected dynamotor MG1, the MG2 of PCM50 are so that the torque distribution of rotating speed the higher person increases (step S181).

Then, according to the selected situation of dynamotor MG1, MG2, control the 1st, the 2nd power-transfer clutch Ch1, Ch2.

In regeneration was handled, PCM50 judged whether comprise the 1st dynamotor MG1 (step S182).If the 1st dynamotor MG1, the converter speed ratio setup unit 53 of PCM50 is set the gear (step S183) most effective for the 1st dynamotor MG1.In view of the above, drive speed transmission electromagnetic valve 18 switches to gear based on the control of step S183 with change-speed box 16.

Then, PCM50 judges whether only selected the 1st dynamotor MG1 (step S184).

If when only being the 1st dynamotor MG1, the clutch control unit 54 of PCM50 is made as engagement state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as released state (step S185).Then, based on the braking of driving engine 10, battery 34 carries out electric power storage by the 1st dynamotor MG1.

On the other hand, in step S184, when judging that the 2nd dynamotor MG2 also turns round, both are made as engagement state (step S186) with the 1st power-transfer clutch Ch1 and the 2nd power-transfer clutch Ch2 in the clutch control unit 54 of PCM50.So both battery 34 charge by the 1st, the 2nd dynamotor MG1, MG2.

In addition, when among the step S182 be judged to be NO the time, that is, and when selected dynamotor only is the 2nd dynamotor MG2 in step S181, the clutch control unit 54 of PCM50 is made as released state with the 1st power-transfer clutch Ch1, and the 2nd power-transfer clutch Ch2 is made as engagement state (step S187).Then, based on the braking of driving engine 10, battery 34 carries out electric power storage by the 2nd dynamotor MG2.

As above illustrated, in the 2nd embodiment, dynamotor MG1, MG2 when running, be in assigned temperature T in the temperature of dynamotor MG1, MG2 _STUnder the above situation, sharing of load by the decision dynamotor, with at the high dynamotor MG1 of the state decline low temperature of keeping the single-piece torque, the load of MG2, therefore, can guarantee required torque, especially can suppress the copper loss of dynamotor MG1, MG2 etc., keep single-piece efficient with small electric power.

In addition, in the 2nd embodiment, induction-motor load allocation units 56 when big more, are reducing assigned temperature T to the requirement of dynamotor MG1, MG2 load more _STWhen to the requirement of dynamotor MG1, MG2 load when big, the tendency that exists the temperature of above-mentioned dynamotor MG1, MG2 to rise and also increase thereupon, therefore, by corresponding to requiring load than lowland change assigned temperature T _ST, can suppress more effectively that Yin Wendu rises and the decrease in efficiency that causes.

In addition, in this 2nd embodiment, also comprise, be arranged on the 1st dynamotor MG1, detect the engine controller 31 of conduct the 1st rotating speed inspection unit of the rotating speed of the 1st dynamotor MG1; Be arranged on the 2nd dynamotor MG2, detect the motor controller 33 of conduct the 2nd rotation speed detection unit of the rotating speed of above-mentioned the 2nd dynamotor MG2, above-mentioned induction-motor load allocation units 56, under the chosen situation of two dynamotor MG1, MG2, and dynamotor MG1, MG2 all are warming up to assigned temperature TST when above, and the sharing of load of the dynamotor that rotational speed N 1, the N2 medium speed that each controller 31,33 is measured is higher improves.Therefore, in the present embodiment, can improve the sharing of load of the less dynamotor of copper loss, realize output efficiently.That is, for dynamotor, temperature is high more, copper loss when flowing through high electric current is big more, and, the decrease in efficiency of dynamotor, copper loss is a principal element, therefore by improving the sharing of load of the higher dynamotor of rotating speed, can suppress decrease in efficiency more effectively.

Claims (16)

1. the control setup of a motor vehicle driven by mixed power, wherein, described motor vehicle driven by mixed power possesses, to the driving engine of vehicle output torque; With the engine shaft direct connection of described driving engine, can generate electricity also can be to the 1st dynamotor of described vehicle output torque; Can generate electricity also can be to the 2nd dynamotor of described vehicle output torque; By the charging of described two dynamotors, and can be to the battery of described two dynamotors power supply,

Described control setup is characterised in that:

Comprise,

Judge the operative condition judgement unit of the operative condition of described vehicle; And

Based on the judgement of described operative condition judgement unit, among described driving engine and the 1st, the 2nd dynamotor, select the running object, so that vehicle single-piece efficient reaches the selected unit of the highest drive source,

Wherein, the efficient of described the 1st dynamotor reaches maximum work area, reaches maximum work area than the efficient of described the 2nd dynamotor, is positioned at high rotating speed side.

2. the control setup of motor vehicle driven by mixed power according to claim 1 is characterized in that:

Described driving engine and described the 1st dynamotor via change-speed box, are connected with the axle drive shaft of vehicle,

Described drive source is selected the unit, at each converter speed ratio of described change-speed box, judges the efficient of described the 1st dynamotor, compares with the efficient of described the 2nd dynamotor.

3. the control setup of motor vehicle driven by mixed power according to claim 2 is characterized in that:

Also comprise the converter speed ratio setup unit,

Described converter speed ratio setup unit has been selected when described driving engine does not drive under the situation of described the 1st dynamotor in the selected unit of described drive source, and the efficient that the converter speed ratio of described change-speed box is set in described the 1st dynamotor reaches the highest gear.

4. the control setup of motor vehicle driven by mixed power according to claim 3 is characterized in that:

Described converter speed ratio setup unit has been selected under the situation of described driving engine and described the 1st dynamotor in the selected unit of described drive source, and the burnup efficient of preferentially setting driving engine reaches the highest converter speed ratio.

5. according to the control setup of each described motor vehicle driven by mixed power in the claim 2 to 4, it is characterized in that:

The motor output shaft of described the 2nd dynamotor is connected in the output shaft of described change-speed box,

Be provided with the 1st power-transfer clutch between described the 1st dynamotor and the described change-speed box,

The described motor output shaft of described the 2nd dynamotor is provided with the 2nd power-transfer clutch,

In addition, also be provided with the clutch control unit,

Described clutch control unit, control the described the 1st and the clutch action of the 2nd power-transfer clutch, during as drive source, to separate described the 1st power-transfer clutch at only selected described the 2nd dynamotor in the selected unit of described drive source, with when the 2nd dynamotor is selected in releasing, separate described the 2nd power-transfer clutch.

6. the control setup of motor vehicle driven by mixed power according to claim 1 is characterized in that:

Also comprise,

Detect the 1st temperature detecting unit of the temperature of described the 1st dynamotor;

Detect the 2nd temperature detecting unit of the temperature of described the 2nd dynamotor; And

State of temperature according to each dynamotor of detection signal decidable of described the 1st, the 2nd temperature detecting unit, and in the temperature of selected dynamotor is that assigned temperature is when above, the sharing of load of decision dynamotor, with under the situation of keeping the single-piece torque, reduce the induction-motor load allocation units of the load of the high dynamotor of temperature.

7. the control setup of motor vehicle driven by mixed power according to claim 6 is characterized in that:

Described induction-motor load allocation units when big more, are reducing described assigned temperature to the requirement of described dynamotor load more.

8. according to the control setup of claim 6 or 7 described motor vehicle driven by mixed powers, it is characterized in that:

Also comprise,

Detect the 1st rotation speed detection unit of the rotating speed of described the 1st genemotor;

Detect the 2nd rotation speed detection unit of the rotating speed of described the 2nd genemotor,

Described induction-motor load allocation units, under the chosen situation of two dynamotors, and dynamotor all is warming up to assigned temperature when above arbitrarily, and the sharing of load of the dynamotor of the rotating speed higher side that described rotation speed detection unit is measured improves.

9. the control method of a motor vehicle driven by mixed power is characterized in that:

Described motor vehicle driven by mixed power possesses,

Driving engine to the vehicle output torque;

With the engine shaft direct connection of described driving engine, can generate electricity also can be to the 1st dynamotor of described vehicle output torque;

Can generate electricity and can be, have and compare the 2nd dynamotor that reaches maximum work area in low rotation speed area efficient with described the 1st dynamotor to described vehicle output torque;

By the charging of described two dynamotors, and can be to the battery of described two dynamotors power supply,

Described control method comprises,

The 1st operation, selected running object from driving engine and the 1st, the 2nd dynamotor is so that vehicle single-piece efficient reaches the highest;

The 2nd operation makes the running of driving engine selected in the 1st operation and dynamotor.

10. the control method of motor vehicle driven by mixed power according to claim 9 is characterized in that:

Described driving engine and described the 1st dynamotor via change-speed box, are connected with the axle drive shaft of vehicle,

Described the 1st operation comprises each converter speed ratio at described change-speed box, judges the efficient of described the 1st dynamotor, the operation that compares with the efficient of described the 2nd dynamotor.

11. the control method of motor vehicle driven by mixed power according to claim 10 is characterized in that:

Also be not included in when described driving engine does not drive and selected under the situation of described the 1st dynamotor, the efficient that the converter speed ratio of described change-speed box is set in described the 1st dynamotor reaches the 3rd operation of the highest gear.

12. the control method of motor vehicle driven by mixed power according to claim 11 is characterized in that:

Described the 3rd operation is being selected under the situation of described driving engine and described the 1st dynamotor by described the 1st operation, and the burnup efficient of preferentially setting driving engine reaches the highest converter speed ratio.

13. the control method according to each described motor vehicle driven by mixed power in the claim 10 to 12 is characterized in that:

The motor output shaft of described the 2nd dynamotor is connected in the output shaft of described change-speed box,

Be provided with the 1st power-transfer clutch between described the 1st dynamotor and the described change-speed box,

The described motor output shaft of described the 2nd dynamotor is provided with the 2nd power-transfer clutch,

In addition, also comprise the clutch control operation,

Described clutch control operation, control the described the 1st and the clutch action of the 2nd power-transfer clutch, during as drive source, to separate described the 1st power-transfer clutch at only selected described the 2nd dynamotor in the selected unit of described drive source, with when the 2nd dynamotor is selected in releasing, separate described the 2nd power-transfer clutch.

14. the control method of motor vehicle driven by mixed power according to claim 9 is characterized in that:

Described motor vehicle driven by mixed power also comprises, detect described the 1st dynamotor temperature the 1st temperature detecting unit and detect the 2nd temperature detecting unit of the temperature of described the 2nd dynamotor,

Described control method also comprises, judgement operation according to the state of temperature of each dynamotor of detection signal decidable of described the 1st, the 2nd temperature detecting unit, with temperature at selected dynamotor be that assigned temperature is when above, the sharing of load of decision dynamotor, with under the situation of keeping the single-piece torque, reduce the 4th operation of the load of the high dynamotor of temperature.

15. the control method of motor vehicle driven by mixed power according to claim 14 is characterized in that:

Described the 4th operation when big more, is reducing described assigned temperature to the requirement of described dynamotor load more.

16. the control method according to claim 14 or 15 described motor vehicle driven by mixed powers is characterized in that:

Described motor vehicle driven by mixed power also comprises, detect described the 1st dynamotor rotating speed the 1st rotation speed detection unit and detect the 2nd rotation speed detection unit of the rotating speed of described the 2nd dynamotor,

Described the 4th operation, under the chosen situation of two dynamotors, and dynamotor all is warming up to assigned temperature when above arbitrarily, and the sharing of load of the dynamotor of the rotating speed higher side that described rotation speed detection unit is measured improves.

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