CN102795103A

CN102795103A - Dual-motor power assembly with intermediate shaft

Info

Publication number: CN102795103A
Application number: CN2012103251746A
Authority: CN
Inventors: 刘华军; 刘智军; 张绍培; 李炎红; 朱超
Original assignee: 刘丽君
Priority date: 2012-09-05
Filing date: 2012-09-05
Publication date: 2012-11-28

Abstract

The invention discloses a dual-motor power assembly with an intermediate shaft. The dual-motor power assembly comprises a differential, as well as a first shaft, a second shaft and an intermediate shaft which are arranged in parallel, wherein an auxiliary motor, an upper shift fork and a splined sleeve are respectively arranged at the two ends of the first shaft, a two-shift gear and a four-shift gear are movably sheathed on the first shaft, and the two-shift gear and the four-shift gear are positioned on the two sides of the upper shift fork and the splined sleeve; a main motor, a lower shift fork and a splined sleeve are respectively arranged at the two ends of the second shaft, a one-shift gear and a three-shift gear are movably sheathed on the second shaft, and the one-shift gear and the three-shift gear are positioned on the two sides of the lower shift fork and the splined sleeve; and a left gear, an intermediate gear and a right gear are sequentially arranged on the intermediate shaft, the left gear is meshed with a differential gear on the differential, the intermediate gear is meshed with the one-shift gear and the two-shift gear, and the right gear is meshed with the three-shift gear and the four-shift gear. The power assembly is simple in structure and can realize reasonable structural arrangement in smaller space, flexibly switch power, prevent the power from being cut off during the switching of the power and improve the comfort in riding of an automobile.

Description

A kind of double-motor dynamic assembly that has tween drive shaft

Technical field

The invention belongs to the automobile power assembly technical field, particularly a kind of double-motor dynamic assembly that has tween drive shaft.

Background technology

At present, the dynamic assembly of hybrid vehicle mainly contains three kinds of tandem type, parallel connection type and hybrid types, and the existing single motor of its motor that adopts has double-motor again.Yet as the dynamic assembly of pure electric automobile, it has only the form that adopts single motor, and the series, parallel of perhaps being made up of a plurality of single motor power assemblies and/or the form of series-parallel connection realize the driving function of electronlmobil with this.

But; Single motor power assembly no matter; Still the double-motor dynamic assembly all has weak point: single motor power assembly only adopts a motor and input shaft to connect, though simple in structure, power of motor is big, the impact load of driver module greatly, motor and the motor drive module cost is high, reliability is relatively poor; Dynamic interruption situation during powershift, traveling comfort is relatively poor; The motor A of double-motor dynamic assembly and input shaft connect, motor B and output shaft coupling, and output shaft and input shaft connect, the tween drive shaft that does not have while and input shaft to be connected with output shaft.

Summary of the invention

The invention provides a kind of simple in structure, power does not interrupt and can improve the double-motor dynamic assembly that has tween drive shaft of the riding traveling comfort of automobile when switching power.

For realizing above-mentioned purpose; Technical scheme of the present invention is: a kind of double-motor dynamic assembly that has tween drive shaft; Comprise diff and the primary shaft, second and the tween drive shaft that are arranged in parallel; The primary shaft two ends are respectively equipped with auxiliary-motor and upper shift fork and spline housing, and movable sleeve is provided with second speed gear and fourth speed gear on the primary shaft, and second speed gear and fourth speed gear are positioned at upper shift fork and spline housing both sides; Second two ends is respectively equipped with main motor and lower shift fork and spline housing, goes up movable sleeve for second and is provided with one grade of gear and 3rd gear, and one grade of gear and 3rd gear are positioned at lower shift fork and spline housing both sides; Be provided with left gear, middle gear and right gear on the tween drive shaft successively, left gear is meshed with differential gear on the diff, and middle gear is meshed with one grade of gear, second speed gear, and right gear is meshed with 3rd gear, fourth speed gear.

Said primary shaft one end is connected with driving engine through power-transfer clutch.

Be connected with wheel on the said diff.

The power of said main motor is greater than the power of auxiliary-motor.

Compared with prior art, advantage of the present invention is:

1, the present invention includes diff and the primary shaft that is arranged in parallel, second and tween drive shaft; The primary shaft two ends are respectively equipped with auxiliary-motor and upper shift fork and spline housing; Movable sleeve is provided with second speed gear and fourth speed gear on the primary shaft, and second speed gear and fourth speed gear are positioned at upper shift fork and spline housing both sides; Second two ends is respectively equipped with main motor and lower shift fork and spline housing, goes up movable sleeve for second and is provided with one grade of gear and 3rd gear, and one grade of gear and 3rd gear are positioned at lower shift fork and spline housing both sides; Be provided with left gear, middle gear and right gear on the tween drive shaft successively, left gear is meshed with differential gear on the diff, and middle gear is meshed with one grade of gear, second speed gear; Right gear is meshed with 3rd gear, fourth speed gear, and it is simple in structure, in less space, realizes the rational structure layout; Can reduce the motor acquisition cost, can switch power flexibly, with better adaptation automobile different working conditions; Interrupting can not appear in power when switching power, can improve the riding traveling comfort of automobile greatly.

2, primary shaft one end is connected with driving engine through power-transfer clutch, both can be used for pure electric automobile, can be used for hybrid vehicle again.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention 1;

Fig. 2 is the structural representation of the embodiment of the invention 2.

The specific embodiment

Embodiment 1, the double-motor dynamic assembly that has tween drive shaft as shown in Figure 1, it comprise diff 4 and the primary shaft that is arranged in parallel 11, second spool 9 with tween drive shaft 10, differential gear 41 and output shaft 42 are arranged on the diff 4.Be respectively equipped with auxiliary-motor 3 and upper shift fork and spline housing 51 at the left and right two ends of primary shaft 11, be provided with second speed gear 62 and fourth speed gear 64 at primary shaft 11 right-hand member movable sleeves simultaneously, second speed gear 62 and fourth speed gear 64 are positioned at the both sides of upper shift fork and spline housing 51.Be respectively equipped with lower shift fork and spline housing 52 and main motor 7 at second 9 left and right two ends, be provided with the both sides that one grade of

gear

61 and 63, one grades of gears of 3rd gear 61 and 3rd gear 63 are positioned at lower shift fork and spline housing 52 at second 9 left end movable sleeve simultaneously.On tween drive shaft 10, be provided with left gear 101, middle gear 102 and right gear 103 successively; Left gear 101 is meshed with differential gear 41 on the diff 4; Middle gear 102 is meshed with one grade of gear 61, second speed gear 62, and right gear 103 is meshed with 3rd gear 63, fourth speed gear 64.Diff 4 is connected with wheel 8 through its output shaft 42, and output shaft 42 links to each other with semiaxis on the wheel 8.When shift fork and spline housing about 51 are stirred, second speed gear 62 or fourth speed gear 64 are fixed together with primary shaft 11, give tween drive shaft 10 transmission of power of auxiliary-motor 3; When shift fork and spline housing about 52 are stirred, one grade of gear 61 or 3rd gear 63 are fixed together with second 9, with the transmission of power of main motor 7 to tween drive shaft 10.

This embodiment can be used for pure electric automobile, and its takeoff output pattern is: 1, auxiliary-motor 3 drives tween drive shaft 10 through primary shaft 11, and tween drive shaft 10 drives diff 4 drive wheels 8 again and comes outputting power; 2, main motor 7 drives tween drive shaft 10 through second 9, and tween drive shaft 10 drives diff 4 drive wheels 8 again and comes outputting power; 3, above-mentioned pattern 1 and pattern 2 combined action outputting powers; 4, pattern 1 switches to replace outputting power to pattern 2 switchings or pattern 2 to pattern 1.

Because the switching process of above takeoff output pattern can be overlapping, can not occur interrupting at powershift process medium power, thereby can improve the riding comfort level of automobile.

In the present invention, the power of main motor 7 is greater than the power of auxiliary-motor 3, and main motor 7 is born the task that works long hours, auxiliary-motor 3 burden short time tasks.Main motor 7 is or/and auxiliary-motor 3 has the driving and the two kinds of functions of generating electricity; Promptly main motor 7 not only can be operated in electric motor state with auxiliary-motor 3; When automobile brake or downhill running, also can convert generating state into; Thereby can realize the recovery of energy,, be beneficial to environmental protection to reduce disposal of pollutants.

Embodiment 2, and is as shown in Figure 2, and the difference of itself and embodiment 1 is: the left end at primary shaft 11 is connected with driving engine 1 through power-transfer clutch 2.

This embodiment can be used for hybrid vehicle, and its takeoff output pattern is: 1, driving engine 1 is in transmission connection through power-transfer clutch 2 and primary shaft 11, and tween drive shaft 10 drives diff 4 drive wheels 8 again and comes outputting power; 2, auxiliary-motor 3 drives tween drive shaft 10 through primary shaft 11, and tween drive shaft 10 drives diff 4 drive wheels 8 again and comes outputting power; 3, main motor 7 drives tween drive shaft 10 through second 9, and tween drive shaft 10 drives diff 4 drive wheels 8 again and comes outputting power; 4, above-mentioned pattern 1, pattern 2 and mode 3 combined action outputting power.

Claims

1. double-motor dynamic assembly that has tween drive shaft; It is characterized in that: comprise diff and the primary shaft, second and the tween drive shaft that are arranged in parallel; The primary shaft two ends are respectively equipped with auxiliary-motor and upper shift fork and spline housing; Movable sleeve is provided with second speed gear and fourth speed gear on the primary shaft, and second speed gear and fourth speed gear are positioned at upper shift fork and spline housing both sides; Second two ends is respectively equipped with main motor and lower shift fork and spline housing, goes up movable sleeve for second and is provided with one grade of gear and 3rd gear, and one grade of gear and 3rd gear are positioned at lower shift fork and spline housing both sides; Be provided with left gear, middle gear and right gear on the tween drive shaft successively, left gear is meshed with differential gear on the diff, and middle gear is meshed with one grade of gear, second speed gear, and right gear is meshed with 3rd gear, fourth speed gear.

2. the double-motor dynamic assembly that has tween drive shaft as claimed in claim 1 is characterized in that: said primary shaft one end is connected with driving engine through power-transfer clutch.

3. according to claim 1 or claim 2 the double-motor dynamic assembly that has tween drive shaft is characterized in that: be connected with wheel on the said diff.

4. the double-motor dynamic assembly that has tween drive shaft as claimed in claim 3, it is characterized in that: the power of said main motor is greater than the power of auxiliary-motor.