Motor vehicle rear wheel suspension system

1. An independent rear-wheel suspension system of a motor vehicle comprising:

a left-hand trailing arm unit and a right-hand trailing arm unit, the left-hand trailing arm unit having first and second left-hand trailing arms, the right-hand trailing arm unit having first and second right-hand trailing arms;

a left-hand transverse link and a right-hand transverse link, the left-hand transverse link having an inner end, an elastomeric bearing at the inner end, the elastomeric bearing having a swivel axis extending parallel a direction of vehicle travel, and an outer end, the outer end connected to a left-hand wheel carrier and the right-hand transverse link having an inner end, an elastomeric bearing at the inner end, the elastomeric bearing having a swivel axis extending parallel a direction of vehicle travel, and an outer end, the outer end connected to a right-hand wheel carrier;

the first and second left-hand trailing arms of the left-hand trailing arm unit each articulated at a front end on a chassis of the motor vehicle and at a rear end on the left-hand wheel carrier and the first and second right-hand trailing arms of the right-hand trailing arm unit each articulated at a front end on the chassis of the motor vehicle and at a rear end on the right-hand wheel carrier;

the articulated front ends of the first and second left-hand trailing arms occupy the same space in a plan view and are separated in a vertical direction;

the articulated front ends of the first and second right-hand trailing arms occupy the same space in a plan view and are separated in the vertical direction; and

an open installation space formed between the left-hand trailing arm unit and right-hand trailing arm unit and in front of the left-hand transverse link and right-hand transverse link; and

the left-hand transverse link having a curvature between the inner end and the outer end wherein the left-hand transverse link has a concave side and the right-hand transverse link having a curvature between the inner end and the outer end, wherein the right-hand transverse link has a concave side; and

the concave side of the left-hand transverse link facing the concave side of the right-hand transverse link.

2. The independent rear-wheel suspension system of claim 1 including elastomer bearing bushes at the front ends and the rear ends of the first and second left-hand trailing arms and the first and second right-hand trailing arms, each elastomer bearing bush having a swivel axis, each swivel axis oriented parallel to one another and perpendicular to the first and second left-hand trailing arms and the first and second right-hand trailing arms.

3. The independent rear-wheel suspension system of claim 1 wherein first and second left-hand trailing arms and first and second right-hand trailing arms extend horizontally in a static load state.

4. The independent rear-wheel suspension system of claim 1 including the left-hand transverse link having an inner end and an elastomer bearing bush at the inner end of the left-hand transverse link; and

the right-hand transverse link having an inner end and an elastomer bearing bush at the inner end of the right-hand transverse link.

5. The independent rear-wheel suspension system of claim 4 wherein the elastomer bearing bush of the left-hand transverse link and the elastomer bearing bush of the right-hand transverse link each have a swivel axis, each swivel axis extending parallel to a direction of travel; and

the elastomer bearing bush of the left-hand transverse link positioned adjacent a connection between the outer end of the right-hand transverse link and the right-hand wheel carrier and the elastomer bearing bush of the right-hand transverse link positioned adjacent a connection between the outer end of the left-hand transverse link and the left-hand wheel carrier.

6. The independent rear-wheel suspension system of claim 1 including the left-hand wheel carrier and left-hand transverse link being an integral unit and the right-hand wheel carrier and right-hand transverse link being an integral unit.

7. The independent rear-wheel suspension system of claim 6 including a left-side spring-and-shock absorber unit connected to the left-hand wheel carrier and left-hand transverse link integral unit and a right-side spring-and-shock absorber unit connected to the right-hand wheel carrier and right-hand transverse link integral unit.

8. A motor vehicle comprising:

an electrical drive train including, an electrical power source;

a left-hand trailing arm unit and a right-hand trailing arm unit, the left-hand trailing arm unit having first and second left-hand trailing arms, the right-hand trailing arm unit having first and second right-hand trailing arms;

a left-hand transverse link and a right-hand transverse link, the left-hand transverse link having an inner end, an elastomeric bearing at the inner end, the elastomeric bearing having a swivel axis extending parallel a direction of the motor vehicle travel, and an outer end, the outer end connected to a left-hand wheel carrier and the right-hand transverse link having an inner end, an elastomeric bearing at the inner end, the elastomeric bearing having a swivel axis extending parallel a direction of vehicle travel, and an outer end, the outer end connected to a right-hand wheel carrier;

the first and second left-hand trailing arms of the left-hand trailing arm unit each articulated at a front end on the chassis of the motor vehicle and at a rear end on the left-hand wheel carrier and the first and second right-hand trailing arms of the right-hand trailing arm unit each articulated at a front end on the chassis of the motor vehicle and at a rear end on the right-hand wheel carrier, first and second left-hand trailing arms and first and second right-hand trailing arms extend horizontally in a static load state;

the articulated front ends of the first and second left-hand trailing arms occupy the same space in a plan view and are separated in a vertical direction;

the articulated front ends of the first and second right-hand trailing arms occupy the same space in a plan view and are separated in the vertical direction; and

an open installation space formed between the left-hand trailing arm unit and right-hand trailing arm unit and in front of the left-hand transverse link and right-hand transverse link; and

a portion of the electrical drive train in the open installation space.

9. An independent rear-wheel suspension system of a motor vehicle comprising:

a left-hand trailing arm unit and a right-hand trailing arm unit, the left-hand trailing arm unit having first and second left-hand trailing arms, the right-hand trailing arm unit having first and second right-hand trailing arms;

a left-hand transverse link and a right-hand transverse link, the left-hand transverse link including an inner end and an outer end, the outer end of the left-hand transverse link connected to a left-hand wheel carrier and the right-hand transverse link including an inner end and an outer end, the outer end of the right-hand transverse link connected to a right-hand wheel carrier;

the inner end of the left-hand transverse link having an elastomer bearing bush and the inner end of the right-hand transverse link having an elastomer bearing bush wherein the elastomer bearing bush of the left-hand transverse link and the elastomer bearing bush of the right-hand transverse link each have a swivel axis, each swivel axis extending parallel to a direction of travel; and

the elastomer bearing bush of the left-hand transverse link positioned adjacent a connection between the outer end of the right-hand transverse link and the right-hand wheel carrier and the elastomer bearing bush of the right-hand transverse link positioned adjacent a connection between the outer end of the left-hand transverse link and the left-hand wheel carrier;

the first and second left-hand trailing arms of the left-hand trailing arm unit each articulated at a front end on the chassis of the motor vehicle and at a rear end on the left-hand wheel carrier and the first and second right-hand trailing arms of the right-hand trailing arm unit each articulated at a front end on the chassis of the motor vehicle and at a rear end on the right-hand wheel carrier;

an open installation space formed between the left-hand trailing arm unit and right-hand trailing arm unit and in front of the left-hand transverse link and right-hand transverse link; and

the left-hand transverse link having a curvature between the inner end and the outer end wherein the left-hand transverse link has a concave side and the right-hand transverse link having a curvature between the inner end and the outer end, wherein the right-hand transverse link has a concave side; and

the concave side of the left-hand transverse link facing the concave side of the right-hand transverse link.

10. The independent rear-wheel suspension system of claim 9 wherein the articulated front ends of the first and second left-hand trailing arms occupy the same space in a plan view and are separated in a vertical direction; and

the articulated front ends of the first and second right-hand trailing arms occupy the same space in a plan view and are separated in the vertical direction.

11. The independent rear-wheel suspension system of claim 9 including the left-hand wheel carrier and left-hand transverse link being an integral unit and the right-hand wheel carrier and right-hand transverse link being an integral unit.

12. The independent rear-wheel suspension system of claim 9 including elastomer bearing bushes at the front ends and the rear ends of the first and second left-hand trailing arms and the first and second right-hand trailing arms, each elastomer bearing bush having a swivel axis, each swivel axis oriented parallel to one another and perpendicular to the first and second left-hand trailing arms and the first and second right-hand trailing arms.

13. The independent rear-wheel suspension system of claim 9 wherein first and second left-hand trailing arms and first and second right-hand trailing arms extend horizontally in a static load state.

14. An independent rear-wheel suspension system of a motor vehicle comprising:

a left-hand trailing arm unit and a right-hand trailing arm unit, the left-hand trailing arm unit having first and second left-hand trailing arms, the right-hand trailing arm unit having first and second right-hand trailing arms;

a left-hand transverse link and a right-hand transverse link, the left-hand transverse link having an inner end, an elastomeric bearing at the inner end, the elastomeric bearing having a swivel axis extending parallel a direction of vehicle travel, and an outer end, the outer end connected to a left-hand wheel carrier and the right-hand transverse link having an inner end, an elastomeric bearing at the inner end, the elastomeric bearing having a swivel axis extending parallel a direction of vehicle travel, and an outer end, the outer end connected to a right-hand wheel carrier;

the first and second left-hand trailing arms of the left-hand trailing arm unit each articulated at a front end on the chassis of the motor vehicle and at a rear end on the left-hand wheel carrier and the first and second right-hand trailing arms of the right-hand trailing arm unit each articulated at a front end on the chassis of the motor vehicle and at a rear end on the right-hand wheel carrier;

the articulated front ends of the first and second left-hand trailing arms occupy the same space in a plan view and are separated in a vertical direction;

the articulated front ends of the first and second right-hand trailing arms occupy the same space in a plan view and are separated in the vertical direction; and

the first and second left-hand trailing arms and first and second right-hand trailing arms extend horizontally in a static load state.

15. The independent rear-wheel suspension system of claim 14 wherein the articulated front ends of the first and second left-hand trailing arms occupy the same space in a plan view and are separated in a vertical direction; and

the articulated front ends of the first and second right-hand trailing arms occupy the same space in a plan view and are separated in the vertical direction.

16. The independent rear-wheel suspension system of claim 14 including a left-hand wheel carrier and a right-hand wheel carrier, the left-hand wheel carrier and left-hand transverse link being an integral unit and the right-hand wheel carrier and right-hand transverse link being an integral unit.

17. The independent rear-wheel suspension system of claim 14 including elastomer bearing bushes at the front ends and the rear ends of the first and second left-hand trailing arms and the first and second right-hand trailing arms, each elastomer bearing bush having a swivel axis, each swivel axis oriented parallel to one another and perpendicular to the first and second left-hand trailing arms and the first and second right-hand trailing arms.