Method and device for decoupling mass for a motor vehicle

Patent metadata

Field	Value
Publication number	US-9834094-B2
Application number	US-201415105716-A
Country	US
Kind code	B2
Filing date	Oct 22, 2014
Priority date	Dec 19, 2013
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

The invention relates to a mass-decoupling device for a motor vehicle, having: a mass-receiving element ( 10 ) and a mass object ( 11 ) accommodated therein, which mass-receiving element ( 10 ) and mass object ( 11 ) are point symmetrically formed and mounted opposite a body ( 36 ) of the motor vehicle; at least one guide means ( 13 ) that moveably mounts the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along a longitudinal axis (L) of the vehicle; decoupling means ( 14 ) designed to decouple the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein from the body ( 36 ) of the motor vehicle; first energy-receiving means ( 15 ) designed to transmit kinetic energy of a movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein to the body ( 36 ) of the motor vehicle in a predetermined time interval, said movement occurring along the longitudinal axis (L) of the vehicle, from a first position (P 1 ) to a second position (P 2 ); and second energy receiving means ( 16 ) designed to convert, at least partially, the kinetic energy of the movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along the longitudinal axis (L) of the vehicle into kinetic energy of a rotation of the mass object ( 11 ). The invention also relates to a corresponding method for decoupling mass for a motor vehicle.

First claim

The invention claimed is:

1. A mass-decoupling device for a motor vehicle, the device comprising:
a mass-receiving element ( 10 ) and a mass object ( 11 ) accommodated therein, the mass-receiving element ( 10 ) and the mass object ( 11 ) being point symmetrically formed and mounted opposite a body ( 12 ) of the motor vehicle;
at least one guide means ( 13 ) that movably mounts the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along a longitudinal axis (L) of the vehicle;
decoupling means ( 14 ) configured to decouple the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein from the body ( 12 ) of the motor vehicle;
first energy-receiving means ( 15 ) configured to transmit kinetic energy of a movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein to the body ( 12 ) of the motor vehicle in a predetermined time interval, said movement occurring along the longitudinal axis (L) of the vehicle from a first position (P 1 ) to a second position (P 2 ); and
second energy-receiving means ( 16 ) configured to convert, at least partially, the kinetic energy of the movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along the longitudinal axis (L) of the vehicle into kinetic energy of a rotation of the mass object ( 11 ),
characterized in that the mass object ( 11 ) has a driver ( 18 ) in a peripheral region, which driver is configured in such a way that said driver ( 18 ) interacts with the second energy-receiving means ( 16 ), when a movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein occurs along the longitudinal axis (L) of the vehicle, such that the mass object ( 11 ) can be set in rotation by the second energy-receiving means ( 16 ).

2. The mass-decoupling according to claim 1 , characterized in that the first energy-receiving means ( 15 ) have at least one damping arrangement ( 17 ) configured to dampen the movement of the mass-receiving element ( 10 ) along the longitudinal axis (L) of the vehicle, wherein the at least one damping arrangement ( 17 ) has a first eddy-current actuator ( 45 , 46 ).

3. The mass-decoupling device according to claim 1 , characterized in that the second energy-receiving means ( 16 ) have a rammer ( 20 ) which is connected to a bumper ( 19 ) in an articulated manner and which interacts with the driver ( 18 ) formed on the mass-receiving element ( 10 ) such that the mass-receiving element ( 10 ) can be set in rotation by the rammer ( 20 ) when a movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein occurs along the longitudinal axis (L) of the vehicle, the second energy-receiving means ( 16 ) comprising a return spring ( 21 ), which connects a distal end of the rammer ( 20 ) to the bumper ( 19 ), wherein the driver ( 18 ) engages with the rammer ( 20 ) in the first position (P 1 ) of the mass-receiving element ( 10 ) and wherein the second energy-receiving means ( 16 ) are configured to return the rammer ( 20 ) to a hollow space ( 22 ) formed in the bumper ( 19 ) after the mass-receiving element ( 10 ) has be set in rotation.

4. The mass-decoupling device according to claim 1 , characterized in that a discharge of kinetic rotational energy of the mass-receiving element ( 10 ) set in rotation and the mass object ( 11 ) accommodated therein can be reduced by air friction and/or a bearing friction of at least one bearing ( 25 a , 25 b ) of the mass-receiving element ( 10 ).

5. A mass-decoupling device for a motor vehicle, the device comprising:
a mass-receiving element ( 10 ) and a mass object ( 11 ) accommodated therein, the mass-receiving element ( 10 ) and the mass object ( 11 ) being point symmetrically formed and mounted opposite a body ( 12 ) of the motor vehicle;
at least one guide means ( 13 ) that movably mounts the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along a longitudinal axis (L) of the vehicle;
decoupling means ( 14 ) configured to decouple the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein from the body ( 12 ) of the motor vehicle;
first energy-receiving means ( 15 ) configured to transmit kinetic energy of a movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein to the body ( 12 ) of the motor vehicle in a predetermined time interval, said movement occurring along the longitudinal axis (L) of the vehicle from a first position (P 1 ) to a second position (P 2 ); and
second energy-receiving means ( 16 ) configured to convert, at least partially, the kinetic energy of the movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along the longitudinal axis (L) of the vehicle into kinetic energy of a rotation of the mass object ( 11 ),
characterized in that the decoupling means ( 14 ) have at least one clamping device ( 23 ) for coupling and/or decoupling the mass-receiving element ( 10 ) to/from the body ( 12 ) of the motor vehicle and at least one eddy-current actuator, the at least one eddy-current actuator being configured to operate the clamping device ( 23 ) for coupling and/or decoupling the mass-receiving element ( 10 ) to/from the body ( 12 ) of the motor vehicle.

6. The mass-decoupling device according to claim 5 , characterized in that the clamping device ( 23 ) for coupling and/or decoupling the mass-receiving element ( 10 ) to/from the body ( 12 ) of the motor vehicle is disposed in an axis of rotation (R) of the mass receiving element ( 10 ) and the mass object ( 11 ) accommodated therein.

7. A mass-decoupling device for a motor vehicle, the device comprising:
a mass-receiving element ( 10 ) and a mass object ( 11 ) accommodated therein, the mass-receiving element ( 10 ) and the mass object ( 11 ) being point symmetrically formed and mounted opposite a body ( 12 ) of the motor vehicle;
at least one guide means ( 13 ) that movably mounts the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along a longitudinal axis (L) of the vehicle;
decoupling means ( 14 ) configured to decouple the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein from the body ( 12 ) of the motor vehicle;
first energy-receiving means ( 15 ) configured to transmit kinetic energy of a movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein to the body ( 12 ) of the motor vehicle in a predetermined time interval, said movement occurring along the longitudinal axis (L) of the vehicle from a first position (P 1 ) to a second position (P 2 ), and
second energy-receiving means ( 16 ) configured to convert, at least partially, the kinetic energy of the movement of the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein along the longitudinal axis (L) of the vehicle into kinetic energy of a rotation of the mass object ( 11 ),
characterized in that the discharge of kinetic rotational energy of the mass-receiving element ( 10 ) set in rotation and the mass object ( 11 ) accommodated therein can be reduced by a brake assembly ( 26 ) for decelerating the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein.

8. The mass-decoupling device according to claim 7 , characterized in that the brake assembly ( 26 ) for decelerating the mass-receiving element ( 10 ) and the mass object ( 11 ) accommodated therein comprises a plurality of planarly configured mechanical brake elements ( 28 a , 28 b , 28 c , 28 d , 28 e , 28 f , 28 g ), wherein a pneumatic brake element ( 27 ) is configured to interact with the plurality of mechanical brake

Assignees

• Bosch Gmbh Robert

Inventors

• Paweletz Anton

Classifications

• B60K2001/0438

  Arrangement under the floor · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• F16F2232/06

  Translation-to-rotary conversion · CPC title

• B60L3/0007 Primary

  Measures or means for preventing or attenuating collisions · CPC title

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title