CN103072577A - Dual-drive unit control device, method and system and engineering vehicle - Google Patents

Abstract

The invention discloses a dual-drive unit control device, a method and a system and an engineering vehicle. A dual drive unit control device including a main drive unit and an auxiliary drive unit, the main drive unit and the auxiliary drive unit being independent of each other, the control device including: receiving means for receiving a parameter associated with the output torque of the primary drive unit and the secondary drive unit; and a control device for calculating an output torque of the auxiliary drive unit based on a parameter associated with the output torques of the main drive unit and the auxiliary drive unit, and controlling the auxiliary drive unit to output the output torque. The invention can ensure that the engineering vehicle is provided with the required driving force by calculating the proper output torque of the auxiliary driving unit and controlling the auxiliary driving unit to output according to the output torque, and can ensure that the engineering vehicle can be stably connected when switching between a single driving source and a double driving source.

Description

A kind of pair of driver element control convenience, method, system and engineering truck

Technical field

The present invention relates to engineering truck, particularly, relate to a kind of pair of driver element control convenience, method, system and engineering truck.

Background technology

In the engineering truck field, most engineering truck adopts mechanical drive to drive.In general engineering truck, driving engine just can finish driving to vehicle for each drive axle power transmission by power-transfer clutch, change speed gear box, transmission shaft, auxiliary gear box, but for the engineering truck for heavy type, because its load is very large, the resistance that travels is also large, and the type of drive of above-mentioned engineering truck may just can't satisfy the demands.In order to satisfy the tractive performance index of heavy engineering truck, the max. climb slope that can finish of engineering truck etc. for example just need to provide more high-performance driving engine and more drive axle.In the prior art, in order to increase propulsive effort, the general parallel type hybrid dynamic that adopts drives, namely increase a drive source, newly-increased drive source and the combined action in parallel of existing drive source are in change speed gear box, and by change speed gear box output combined action in drive axle, thereby provide larger propulsive effort for engineering truck.

Although above-mentioned technical scheme can provide larger propulsive effort, for engineering truck, because its vehicle body is longer, drive axle is more, thereby causes the layout of driving system very difficult.For larger propulsive effort is provided for engineering truck, and the defective of avoiding technique scheme to exist, gradually adopt at present the increase auxiliary drive unit, by utilizing auxiliary power source and independently driving driving system and drive different bridges.This design can be at engineering truck under special operation condition, when for example climbing, open auxiliary power source auxiliary driving force is provided, when nominal situation travels, close auxiliary power source and provide propulsive effort by existing main driver element, thereby when guaranteeing to provide enough propulsive efforts, also can settle easily driving system.

Because main driver element and auxiliary drive unit are separate, main driver element and auxiliary drive unit are cooperatively interacted just become very crucial.Mate relatively poor words and can cause main driver element and auxiliary drive unit conflict, for example main drive unit drives power is less, and the auxiliary drive unit propulsive effort can push away the engineering truck motion when larger, perhaps and for example main drive unit drives power is very large, and the auxiliary drive unit propulsive effort hour, auxiliary drive unit just can not play should booster action, can be dragged by main driver element on the contrary.In addition, if mate relatively poorly, can't keep steady linking when between Single Drive Source and two drive source, switching.Also there is not to make the mature technology scheme of main driver element and auxiliary drive unit close fit in the prior art.

Summary of the invention

The purpose of this invention is to provide a kind of pair of driver element control convenience, method, system and engineering truck, so that the main driver element of engineering truck and auxiliary drive unit can close fit.

The invention provides a kind of pair of driver element control convenience, this pair driver element comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit are separate, it is characterized in that, this control convenience comprises: receiving device is used for receiving the parameter related with the output torque of described main driver element and described auxiliary drive unit; And control setup, be used for the output torque according to the calculation of parameter described auxiliary drive unit related with the output torque of described main driver element and described auxiliary drive unit, and control described auxiliary drive unit and export described output torque.

Correspondingly, the invention provides a kind of pair of driver element control method, this pair driver element comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit are separate, it is characterized in that this control method comprises: receive the parameter related with the output torque of described main driver element and described auxiliary drive unit; And according to the output torque of the calculation of parameter described auxiliary drive unit related with the output torque of described main driver element and described auxiliary drive unit, and control described auxiliary drive unit and export described output torque.

Correspondingly, the invention provides a kind of pair of driver element control system, this pair driver element comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit are separate, this control system comprises: detecting device, for detection of the parameter related with the output torque of described main driver element and described auxiliary drive unit; And described control convenience.

Correspondingly, the invention provides a kind of engineering truck, this project vehicle comprises described control system.

The present invention can be by calculating suitable auxiliary drive unit output torque and control auxiliary drive unit according to this output torque output, thereby can guarantee as engineering truck provides its required propulsive effort, and can so that engineering truck can steadily be connected when between Single Drive Source and two drive source, switching.

Other features and advantages of the present invention will partly be described in detail in the specific embodiment subsequently.

Description of drawings

Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of specification sheets, is used from explanation the present invention with the following specific embodiment one, but is not construed as limiting the invention.In the accompanying drawings:

Fig. 1 is provided by the invention pair of driver element control convenience scheme drawing;

Fig. 2 is the annexation scheme drawing of control setup provided by the invention and main driver element and auxiliary drive unit;

Fig. 3 A is the motor characteristic curve scheme drawing;

Fig. 3 B is the scheme drawing that concerns between the output torque of the rotating speed of driving engine and auxiliary drive unit;

Fig. 3 C be the speed of a motor vehicle and and the output torque of auxiliary drive unit between concern scheme drawing;

Fig. 4 is provided by the invention pair of driver element control method schematic flow sheet;

Fig. 5 is provided by the invention pair of driver element control system structural representation.

Description of reference numerals

100 receiving devices, 200 control setups

300 detecting devices, 10 driving engines

11 change speed gear boxs, 12 auxiliary gear boxs

13 main drive axles, 20 assistive drive sources

21 assistive drive driving systems, 22 assistive drive bridges

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.

Fig. 1 shows provided by the invention pair of driver element control convenience scheme drawing, this pair driver element comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit are separate, this control convenience comprises: receiving device 100 is used for receiving the parameter related with the output torque of described main driver element and described auxiliary drive unit; And control setup 200, be used for the output torque according to the calculation of parameter described auxiliary drive unit related with the output torque of described main driver element and described auxiliary drive unit, and control described auxiliary drive unit and export described output torque.Output torque by calculating suitable auxiliary drive unit is also controlled auxiliary drive unit according to this output torque output, thereby can guarantee as engineering truck provides its required propulsive effort, and can so that engineering truck can steadily be connected when between Single Drive Source and two drive source, switching.

Main driver element comprises driving engine 10, change speed gear box 11, auxiliary gear box 12 and main drive axle 13, and driving engine 10 is used to provide power, finally acts on the main drive axle 13 via change speed gear box 11, auxiliary gear box 12 and drives Vehicle Driving Cycle.Auxiliary drive unit comprises auxiliary power source 20, assistive drive driving system 21 and assistive drive bridge 22, and auxiliary power source 20 is used for providing power, acts on the assistive drive bridge 22 via assistive drive driving system 21 and drives Vehicle Driving Cycle.Fig. 2 shows the annexation figure of control setup 200 and main driver element and auxiliary drive unit.Driving engine 10, change speed gear box 11, auxiliary gear box 12 and main drive axle 13 connect successively, and driving engine 10, change speed gear box 11 and main drive axle 13 also are connected with control setup 200 respectively; Auxiliary power source 20, assistant drive system 21 and assistive drive bridge 22 connect successively, and assistant drive system 21 also is connected with control setup 200.By this connection can realize to control setup 200 provide with the related parameter of the output torque of described main driver element and described auxiliary drive unit, and control setup 200 can be exported corresponding output torque according to this parameter control auxiliary drive unit.

Preferably, the parameter related with the output torque of described main driver element and described auxiliary drive unit comprises the rotating speed of the speed of a motor vehicle, described driving engine and current gearbox-gear.Control setup 200 can calculate intermediate variable M (v) according to following formula after the rotating speed that obtains the speed of a motor vehicle, driving engine and current gearbox-gear:

$\left\{\begin{array}{c}M\left(v\right)=M_{\max },v\≤v_0\\ M\left(v\right)=\frac{W_{\max }}{v},v>v_0\end{array}\right.---\left(1\right);$

Wherein v is the speed of a motor vehicle,

M _MaxBe the max. output torque of assistant drive system, W _MaxMaximum power for described auxiliary power source.Control setup 200 is according to v and v ₀Between relation calculate M (v), shown in the relation and Fig. 3 C between this intermediate variable M (v) and the speed of a motor vehicle.

After obtaining M (v), can continue to utilize following formula to calculate intermediate variable M (Ne):

$\left\{\begin{array}{c}M\left(\mathrm{Ne}\right)=M\left(v\right)\·\frac{\mathrm{Ne}-{\mathrm{Ne}}_0}{{\mathrm{Ne}}_1-{\mathrm{Ne}}_0},{\mathrm{Ne}}_0\≤\mathrm{Ne}\≤{\mathrm{Ne}}_1\\ M\left(\mathrm{Ne}\right)=M_{\max },\mathrm{Ne}\≥{\mathrm{Ne}}_1\end{array}\right.---\left(2\right);$

Wherein Ne is the rotating speed of driving engine, Ne ₀Be the idling of driving engine, Ne ₁Rotating speed during for the driving engine maximum output torque.Ne ₀Can set in advance Ne ₁Can obtain according to motor characteristic curve.

Fig. 3 A shows motor characteristic curve, and the output torque of driving engine is determined by engine speed.As can be seen from the figure, engine speed is at idling Ne ₀And Ne ₁Between when changing, the output torque M of driving engine _eIncrease and monotone increasing with rotating speed, wherein at idling Ne ₀The time output torque be M _Emin, at rotational speed N e ₁The time output torque be M _EmaxIn order to make main driver element and auxiliary drive unit close fit, (engine speed is Ne when engine output torque reaches maximum torque point ₁), auxiliary drive unit also reaches max. output torque.The output torque of auxiliary drive unit and the relation between the rotating speed are Ne at the rotating speed of driving engine shown in Fig. 3 B ₁The time, the output torque of auxiliary drive unit reaches max. output torque M _MaxAs can be seen from Figure 3B, linear between the output torque M of auxiliary drive unit and the engine speed.

After obtaining intermediate variable M (Ne), can obtain the moment of torsion that auxiliary drive unit should be exported by the substitution following formula:

$M\left(b_i\right)=M\left(\mathrm{Ne}\right)\·\frac{b_i}{b_1}---\left(3\right)$

B wherein _iBe described current speed ratio corresponding to gearbox-gear, i is positive integer, b ₁Be speed ratio corresponding to the minimum gear of described change speed gear box, M (b _i) be the output torque of described auxiliary drive unit.

After obtaining the output torque that auxiliary drive unit should export by above-mentioned formula (1)-formula (3), can transmit control signal to auxiliary drive unit, auxiliary drive unit is exported corresponding output torque according to this control signal, thereby finished cooperating between main driver element and the auxiliary drive unit, namely realized the moment of torsion coupling between main driver element and the auxiliary drive unit, shown in the double-head arrow among Fig. 2.

Fig. 4 shows the idiographic flow that control setup calculates the output torque of auxiliary drive unit, specifically comprises:

Receive rotating speed and current gearbox-gear (step 301), the then basis of the speed of a motor vehicle, driving engine $\left\{\begin{array}{c}M\left(v\right)=M_{\max },v\≤v_0\\ M\left(v\right)=\frac{W_{\max }}{v},v>v_0\end{array}\right.$ Calculate M (v) (step 302), wherein v is the speed of a motor vehicle, $v_0=\frac{W_{\max }}{M_{\max }},$ M _MaxBe the max. output torque of assistant drive system, W _MaxMaximum power for described auxiliary power source.Control setup 200 is according to v and v ₀Between relation calculate M (v), shown in the relation and Fig. 3 C between this M (v) and the speed of a motor vehicle.Calculating M (v) afterwards, can utilize M (v) and $\left\{\begin{array}{c}M\left(\mathrm{Ne}\right)=M\left(v\right)\·\frac{\mathrm{Ne}-{\mathrm{Ne}}_0}{{\mathrm{Ne}}_1-{\mathrm{Ne}}_0},{\mathrm{Ne}}_0\≤\mathrm{Ne}\≤{\mathrm{Ne}}_1\\ M\left(\mathrm{Ne}\right)=M_{\max },\mathrm{Ne}\≥{\mathrm{Ne}}_1\end{array}\right.$ Calculate M (Ne) (step 303), wherein Ne is the rotating speed of driving engine, Ne ₀Be the idling of driving engine, Ne ₁Rotating speed during for the driving engine maximum output torque.Ne ₀Can set in advance Ne ₁Can obtain according to motor characteristic curve.At last according to M (Ne) and

Obtain M (b _i) (step 304), wherein b _iBe described current speed ratio corresponding to gearbox-gear, i is positive integer, b ₁Be speed ratio corresponding to the minimum gear of described change speed gear box, M (b _i) be the output torque of described auxiliary drive unit.

Correspondingly, the invention provides a kind of pair of driver element control method, this pair driver element comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit are separate, and this control method comprises: receive the parameter related with the output torque of described main driver element and described auxiliary drive unit; And according to the output torque of the calculation of parameter described auxiliary drive unit related with the output torque of described main driver element and described auxiliary drive unit, and control described auxiliary drive unit and export described output torque.

Correspondingly, the present invention also provides a kind of pair of driver element control system, comprise as shown in Figure 5 receiving device 100, control setup 200 and detecting device 300, this pair driver element comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit are separate, and detecting device 300 is for detection of the parameter related with the output torque of described main driver element and described auxiliary drive unit.Detecting device 300 can comprise engine speed sensor, gear position sensor and car speed sensor, in order to the parameters such as engine speed, current gearbox-gear and the speed of a motor vehicle are provided to control setup 200, this parameter can calculate for control setup 200 output torque of auxiliary drive unit.

Correspondingly, the invention provides a kind of engineering truck, this project vehicle comprises described control system.

Below describe by reference to the accompanying drawings preferred implementation of the present invention in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.

Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the present invention is to the no longer separately explanation of various possible array modes.

In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (10)

1. two driver element control convenience, this pair driver element comprises main driver element and auxiliary drive unit, and described main driver element and described auxiliary drive unit are separate, it is characterized in that, and this control convenience comprises:

Receiving device is used for receiving the parameter related with the output torque of described main driver element and described auxiliary drive unit; And

Control setup is used for the output torque according to the calculation of parameter described auxiliary drive unit related with the output torque of described main driver element and described auxiliary drive unit, and controls described auxiliary drive unit and export described output torque.

2. control convenience according to claim 1, it is characterized in that, described main driver element comprises driving engine, change speed gear box, auxiliary gear box and main drive axle, described driving engine, described change speed gear box, described auxiliary gear box and described main drive axle connect successively, and described driving engine, described change speed gear box and described main drive axle also are connected with described control setup respectively; Described auxiliary drive unit comprises auxiliary power source, assistant drive system and assistive drive bridge, described auxiliary power source, described assistant drive system and described assistive drive bridge connect successively, and described assistant drive system also is connected with described control setup.

3. control convenience according to claim 2 is characterized in that, the parameter related with the output torque of described main driver element and described auxiliary drive unit comprises the rotating speed of the speed of a motor vehicle, described driving engine and current gearbox-gear.

4. control convenience according to claim 3 is characterized in that, described control setup is determined the output torque of described auxiliary drive unit according to following formula:

$\left\{\begin{array}{c}M\left(v\right)=M_{\max },v\≤v_0\\ M\left(v\right)=\frac{W_{\max }}{v},v>v_0\end{array}\right.;$

$\left\{\begin{array}{c}M\left(\mathrm{Ne}\right)=M\left(v\right)\·\frac{\mathrm{Ne}-{\mathrm{Ne}}_0}{{\mathrm{Ne}}_1-{\mathrm{Ne}}_0},{\mathrm{Ne}}_0\≤\mathrm{Ne}\≤{\mathrm{Ne}}_1\\ M\left(\mathrm{Ne}\right)=M_{\max },\mathrm{Ne}\≥{\mathrm{Ne}}_1\end{array}\right.;$

$M\left(b_i\right)=M\left(\mathrm{Ne}\right)\·\frac{b_i}{b_1};$

Wherein, M _MaxBe the max. output torque of described assistant drive system,

W _MaxBe the maximum power of described auxiliary power source, v is the speed of a motor vehicle, and Ne is the rotating speed of described driving engine, Ne ₀Be the idling of described driving engine, Ne ₁Rotating speed during for described driving engine maximum output torque, b _iBe described current speed ratio corresponding to gearbox-gear, i is positive integer, b ₁Be speed ratio corresponding to the minimum gear of described change speed gear box, M (b _i) be the output torque of described auxiliary drive unit, M (v) and M (Ne) are intermediate variable.

5. two driver element control method, this pair driver element comprises main driver element and auxiliary drive unit, and described main driver element and described auxiliary drive unit are separate, it is characterized in that, and this control method comprises:

Receive the parameter related with the output torque of described main driver element and described auxiliary drive unit; And

According to the output torque of the calculation of parameter described auxiliary drive unit related with the output torque of described main driver element and described auxiliary drive unit, and control described auxiliary drive unit and export described output torque.

6. control method according to claim 5, it is characterized in that, described main driver element comprises driving engine, change speed gear box, auxiliary gear box and main drive axle, described driving engine, described change speed gear box, described auxiliary gear box and described main drive axle connect successively, and described driving engine, described change speed gear box and described main drive axle also are connected with described control setup respectively; Described auxiliary drive unit comprises auxiliary power source, assistant drive system and assistive drive bridge, and described assistant drive system also is connected with described control setup.

7. control method according to claim 6 is characterized in that, the parameter related with the output torque of described main driver element and described auxiliary drive unit comprises the rotating speed of the speed of a motor vehicle, described driving engine and current gearbox-gear.

8. control method according to claim 7, it is characterized in that the output torque of the described auxiliary drive unit of calculation of parameter that described basis is related with the output torque of described main driver element and described auxiliary drive unit comprises the output torque of determining described auxiliary drive unit according to following formula:

$\left\{\begin{array}{c}M\left(v\right)=M_{\max },v\≤v_0\\ M\left(v\right)=\frac{W_{\max }}{v},v>v_0\end{array};\right.$

$\left\{\begin{array}{c}M\left(\mathrm{Ne}\right)=M\left(v\right)\·\frac{\mathrm{Ne}-{\mathrm{Ne}}_0}{{\mathrm{Ne}}_1-{\mathrm{Ne}}_0},{\mathrm{Ne}}_0\≤\mathrm{Ne}\≤{\mathrm{Ne}}_1\\ M\left(\mathrm{Ne}\right)=M_{\max },\mathrm{Ne}\≥{\mathrm{Ne}}_1\end{array}\right.;$

$M\left(b_i\right)=M\left(\mathrm{Ne}\right)\·\frac{b_i}{b_1};$

Wherein, M _MaxBe the max. output torque of described assistant drive system,

W _MaxBe the maximum power of described auxiliary power source, v is the speed of a motor vehicle, and Ne is the rotating speed of described driving engine, Ne ₀Be the idling of described driving engine, Ne ₁Rotating speed during for described driving engine maximum output torque, b _iBe described current speed ratio corresponding to gearbox-gear, i is positive integer, b ₁Be speed ratio corresponding to the minimum gear of described change speed gear box, M (b _i) be the output torque of described auxiliary drive unit, M (v) and M (Ne) are intermediate variable.

9. two driver element control system, this pair driver element comprises main driver element and auxiliary drive unit, and described main driver element and described auxiliary drive unit are separate, it is characterized in that, and this control system comprises:

Detecting device is for detection of the parameter related with the output torque of described main driver element and described auxiliary drive unit; And

The described control convenience of any one according to claim 1-4.

10. an engineering truck is characterized in that, this project vehicle comprises control system according to claim 9.

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