CN103072577B - 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 Dual Drive unit controls equipment, method, system and engineering truck

Technical field

The present invention relates to engineering truck, particularly, relate to a kind of Dual Drive unit controls equipment, method, system and engineering truck.

Background technology

In engineering truck field, most engineering truck adopts mechanical drive to drive.In general engineering truck, power transmission just can complete driving to vehicle to each drive axle by power-transfer clutch, change speed gear box, transmission shaft, auxiliary gear box by driving engine, but for the engineering truck for heavy type, because its load is very large, the resistance travelled is also large, and the type of drive of above-mentioned engineering truck may just cannot satisfy the demands.In order to the tractive performance index of the engineering truck of satisfied heavy type, max. climb slope that such as engineering truck can complete etc., just needs to provide more high-performance driving engine and more drive axle.In prior art, in order to increase propulsive effort, general employing parallel type hybrid dynamic drives, namely increase a drive source, newly-increased drive source combined action in parallel with existing drive source is in change speed gear box, and export combined action in drive axle by change speed gear box, thus 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, thus causes the layout of driving system very difficult.In order to provide larger propulsive effort for engineering truck, and the defect avoiding technique scheme to exist, gradually adopt increase auxiliary drive unit at present, by utilizing auxiliary power source and independently driving driving system to drive different bridges.This design can at engineering truck under special operation condition, such as, when climbing, open auxiliary power source to provide auxiliary driving force, when nominal situation travels, close auxiliary power source and provide propulsive effort by existing main driver element, thus while guaranteeing to provide enough propulsive efforts, also can settle driving system easily.

Due to main driver element and auxiliary drive unit separate, how to make main driver element and auxiliary drive unit cooperatively interact and just become very crucial.Mate poor words and can cause main driver element and auxiliary drive unit conflict, such as main drive unit drives power is less, and auxiliary drive unit propulsive effort larger time can push engineering truck motion, or and for example main drive unit drives power is very large, and auxiliary drive unit propulsive effort less time, auxiliary drive unit just can not play should booster action, can be dragged by main driver element on the contrary.In addition, if mate poor, when switching between Single Drive Source and Dual Drive source, steady linking cannot be maintained.The mature technology scheme that can make main driver element and auxiliary drive unit close fit is not also had in prior art.

Summary of the invention

The object of this invention is to provide a kind of Dual Drive unit controls equipment, method, system and engineering truck, make the main driver element of engineering truck and auxiliary drive unit can close fit.

The invention provides a kind of Dual Drive unit controls equipment, this Dual Drive unit comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit separate, it is characterized in that, this control convenience comprises: receiving device, for receiving the parameter associated with the output torque of described auxiliary drive unit with described main driver element; And control setup, for according to and the calculation of parameter that associates with the output torque of described auxiliary drive unit of described main driver element described in the output torque of auxiliary drive unit, and control described auxiliary drive unit and export described output torque.

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

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

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

The present invention can by calculating the output torque of suitable auxiliary drive unit and controlling auxiliary drive unit and export according to this output torque, thus can ensure as engineering truck provides propulsive effort needed for it, and can steadily be connected when engineering truck can be made to switch between Single Drive Source and Dual Drive source.

Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.

Accompanying drawing explanation

Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:

Fig. 1 is Dual Drive unit controls equipment schematic diagram provided by the invention;

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

Fig. 3 A is motor characteristic curve schematic diagram;

Fig. 3 B is the relation schematic diagram between the rotating speed of driving engine and the output torque of auxiliary drive unit;

Fig. 3 C be the speed of a motor vehicle and and the output torque of auxiliary drive unit between relation schematic diagram;

Fig. 4 is Dual Drive unit control method schematic flow sheet provided by the invention;

Fig. 5 is Dual Drive unit control system structural representation provided by the invention.

Description of reference numerals

100 receiving device 200 control setups

300 detecting device 10 driving engines

11 change speed gear box 12 auxiliary gear boxs

13 main drive axle 20 assistive drive sources

21 assistive drive driving system 22 assistive drive bridges

Detailed description of the invention

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

Fig. 1 shows Dual Drive unit controls equipment schematic diagram provided by the invention, this Dual Drive unit comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit separate, this control convenience comprises: receiving device 100, for receiving the parameter associated with the output torque of described auxiliary drive unit with described main driver element; And control setup 200, for according to and the calculation of parameter that associates with the output torque of described auxiliary drive unit of described main driver element described in the output torque of auxiliary drive unit, and control described auxiliary drive unit and export described output torque.By calculating the output torque of suitable auxiliary drive unit and controlling auxiliary drive unit and export according to this output torque, thus can ensure as engineering truck provides propulsive effort needed for it, and can steadily be connected when engineering truck can be made to switch between Single Drive Source and Dual Drive source.

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 main drive axle 13 drive vehicle to travel via change speed gear box 11, auxiliary gear box 12.Auxiliary drive unit comprises auxiliary power source 20, assistive drive driving system 21 and assistive drive bridge 22, and auxiliary power source 20, for providing power, acts on assistive drive bridge 22 via assistive drive driving system 21 and drives vehicle to travel.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 are also 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 is also connected with control setup 200.Can realize providing and the parameter associated with the output torque of described auxiliary drive unit with described main driver element to control setup 200 by this connection, and control setup 200 can export corresponding output torque according to this state modulator auxiliary drive unit.

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

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

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

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 ₀for the idling of driving engine, Ne ₁for rotating speed during driving engine maximum output torque.Ne ₀can pre-set, 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, wherein at idling Ne with rotating speed ₀time output torque be M _emin, at rotating speed Ne ₁time output torque be M _emax.In order to make main driver element and auxiliary drive unit close fit, when engine output torque reaches maximum torque point, (engine speed is Ne ₁), auxiliary drive unit also reaches max. output torque.Relation between the output torque of auxiliary drive unit and rotating speed as shown in Figure 3 B, is Ne at the rotating speed of driving engine ₁time, the output torque of auxiliary drive unit reaches max. output torque M _max.As can be seen from Figure 3B, linear between the output torque M of auxiliary drive unit and engine speed.

After obtaining intermediate variable M (Ne), following formula can be substituted into and obtain the moment of torsion that auxiliary drive unit should export:

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

Wherein b _ifor the speed ratio that described current gearbox-gear is corresponding, i is positive integer, b ₁for the speed ratio that the minimum gear of described change speed gear box is corresponding, M (b _i) be the output torque of described auxiliary drive unit.

After obtaining by above-mentioned formula (1)-formula (3) output torque that auxiliary drive unit should export, can transmit control signal to auxiliary drive unit, auxiliary drive unit exports corresponding output torque according to this control signal, thus complete main driver element and coordinating between auxiliary drive unit, namely achieve main driver element to mate with the moment of torsion between auxiliary drive unit, as shown in the double-head arrow in Fig. 2.

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

The rotating speed of the reception speed of a motor vehicle, driving engine and current gearbox-gear (step 301), then basis $\left\{\begin{array}{c}M\left(v\right)=M_{\max },v\≤v_0\\ M\left(v\right)=\frac{W_{\max }}{v},v>v_0\end{array}\right.$ Calculate M (v) (step 302), wherein v is the speed of a motor vehicle, $v_0=\frac{W_{\max }}{M_{\max }},$ M _maxfor the max. output torque of assistant drive system, W _maxfor the maximum power of described auxiliary power source.Control setup 200 is according to v and v ₀between relation calculate M (v), shown in the relation between this M (v) and speed of a motor vehicle and Fig. 3 C.After calculating M (v), 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 ₀for the idling of driving engine, Ne ₁for rotating speed during driving engine maximum output torque.Ne ₀can pre-set, Ne ₁can obtain according to motor characteristic curve.Finally according to M (Ne) and obtain M (b _i) (step 304), wherein b _ifor the speed ratio that described current gearbox-gear is corresponding, i is positive integer, b ₁for the speed ratio that the minimum gear of described change speed gear box is corresponding, M (b _i) be the output torque of described auxiliary drive unit.

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

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

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

Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive 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.

It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.

In addition, also can carry out combination in any between various different 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 (6)

1. a Dual Drive unit controls equipment, this Dual Drive unit comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit separate, it is characterized in that, this control convenience comprises:

Receiving device, for receiving the parameter associated with the output torque of described auxiliary drive unit with described main driver element; And

Control setup, for according to and the calculation of parameter that associates with the output torque of described auxiliary drive unit of described main driver element described in the output torque of auxiliary drive unit, and control described auxiliary drive unit and export described output torque;

Wherein, 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 are also 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 is also connected with described control setup; And the parameter wherein associated with the output torque of described auxiliary drive unit with described main driver element comprises the speed of a motor vehicle, the rotating speed of described driving engine and current gearbox-gear.

2. control convenience according to claim 1, is characterized in that, described control setup determines the output torque of described auxiliary drive unit according to following formula:

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

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

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

Wherein, M _maxfor the max. output torque of described assistant drive system, w _maxfor 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 ₀for the idling of described driving engine, Ne ₁for rotating speed during described driving engine maximum output torque, b _ifor the speed ratio that described current gearbox-gear is corresponding, i is positive integer, b ₁for the speed ratio that the minimum gear of described change speed gear box is corresponding, M (b _i) be the output torque of described auxiliary drive unit, M (v) and M (Ne) is intermediate variable.

3. a Dual Drive unit control method, this Dual Drive unit comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit separate, it is characterized in that, this control method comprises:

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

The output torque of auxiliary drive unit according to the calculation of parameter associated with the output torque of described auxiliary drive unit with described main driver element, and control described auxiliary drive unit and export described output torque;

Wherein, 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 are also 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 is also connected with described control setup; And the parameter wherein associated with the output torque of described auxiliary drive unit with described main driver element comprises the speed of a motor vehicle, the rotating speed of described driving engine and current gearbox-gear.

4. control method according to claim 3, it is characterized in that, described in the calculation of parameter that described basis and described main driver element associate with the output torque of described auxiliary drive unit, the output torque of auxiliary drive unit comprises the output torque determining described auxiliary drive unit according to following formula:

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

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

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

Wherein, M _maxfor the max. output torque of described assistant drive system, w _maxfor 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 ₀for the idling of described driving engine, Ne ₁for rotating speed during described driving engine maximum output torque, b _ifor the speed ratio that described current gearbox-gear is corresponding, i is positive integer, b ₁for the speed ratio that the minimum gear of described change speed gear box is corresponding, M (b _i) be the output torque of described auxiliary drive unit, M (v) and M (Ne) is intermediate variable.

5. a Dual Drive unit control system, this Dual Drive unit comprises main driver element and auxiliary drive unit, described main driver element and described auxiliary drive unit separate, it is characterized in that, this control system comprises:

Detecting device, for detecting the parameter associated with the output torque of described auxiliary drive unit with described main driver element; And

Control convenience according to claim 1 and 2.

6. an engineering truck, is characterized in that, this project vehicle comprises control system according to claim 5.