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Four-wheel drive vehicle

A four-wheel drive and driving force technology, which is applied to vehicle components, control devices, transportation and packaging, etc., can solve the problems such as the impact of the space under the front row of feet, and achieve the effect of improving responsiveness, driving feeling and reducing axle diameter

Active Publication Date: 2018-08-10
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in prior art FR-based four-wheel-drive vehicles, the front foot room may be affected due to the presence of the front drive shaft

Method used

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Examples

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no. 1 Embodiment approach

[0036] 1. Outline structure of four-wheel drive vehicle 1

[0037] use figure 1 The schematic structure of the four-wheel drive vehicle 1 of this embodiment is demonstrated.

[0038] Such as figure 1 As shown, an engine 10 as a power source is mounted on the front part (+X side part) of the four-wheel drive vehicle 1. The engine 10 is, for example, a gasoline engine or a diesel engine. The engine 10 is mounted in an engine compartment at the front of the vehicle, and the output shaft is vertically installed along the front-rear direction (X direction) of the vehicle.

[0039] With respect to the engine 10, a transmission 11 is provided on the -X side. The transmission 11 is also vertical. The transmission 11 is connected to the output shaft of the engine 10.

[0040] A rear propeller shaft 13 is connected to the output side of the transmission 11. The rear propeller shaft 13 extends toward the -X side along the front-rear direction (X direction) of the vehicle. The rear end of th...

no. 2 Embodiment approach

[0066] use image 3 The schematic configuration of the four-wheel drive vehicle 22 of the second embodiment will be described. In addition, in image 3 Here, the same reference numerals are given to the same parts as in the above-mentioned first embodiment, and the description is omitted.

[0067] Such as image 3 As shown, in the four-wheel drive vehicle 22 of this embodiment, an electronically controlled 4WD for controlling the power distribution of the forward differential gear 18 is interposed in the power transmission path between the transmission 11 and the rear drive shaft 13 Clutch 23. The 4WD clutch 23 detects the difference in speed between the front wheels 20 and the rear wheels 16, and performs optimal power distribution according to road conditions and driving conditions.

[0068] In the four-wheel drive vehicle 22 of the present embodiment, the relationships of [Expression 1] to [Expression 3] described above are also satisfied, and the following relationships are ...

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PUM

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Abstract

Provided is a four-wheel drive vehicle capable of suppressing the influence of a foot space towards the forward due to arrangement of a front propeller shaft. The four-wheel drive vehicle (1) includesan engine (10), a rear propeller shaft (13), a rear differential gear (14), a transfer mechanism (12), a front propeller shaft (17), and a front differential gear (18). The front propeller shaft (17)is arranged so as to pass through a vicinity of an outside of a room of a pedal working space (A) of a driver's seat and extend toward a front part of the vehicle. In the four-wheel drive vehicle (1), the gear ratio of the front differential gear (18) may be RF, the final gear ratio of the rear differential gear (14) may be RR, the transmission ratio of the transfer mechanism (12) may be RT, andthe relationships RF<RR and RT>1 may be satisfied.

Description

Technical field [0001] The invention relates to a four-wheel drive vehicle, in particular to a four-wheel drive vehicle based on an FR vehicle. Background technique [0002] For example, Patent Document 1 discloses the structure of a four-wheel drive vehicle based on an FR (Front Rear Drive) vehicle. The four-wheel drive vehicle disclosed in Patent Document 1 includes an engine mounted on the front of the vehicle, a vertical transmission, a transfer mechanism connected to the output side of the transmission, and a transfer mechanism connected to the transfer mechanism and extending in the front and rear direction of the vehicle The rear drive shaft and the front drive shaft, and the rear differential gear and the front differential gear connected to each drive shaft. The front drive shaft extends along the outer side of the transmission to the location where the front differential gear is arranged at the front of the vehicle. [0003] In the four-wheel drive vehicle having the ab...

Claims

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Application Information

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IPC IPC(8): B60K17/346
CPCB60K17/3467B60K17/165B60K17/344B60K23/08B60K17/16
Inventor 三户英治村田英树
Owner MAZDA MOTOR CORP
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