Vehicle Having a Level Compensation System
AssigneeZoomability AB
InventorsKarri Zanderléhn, Mikael Löfstrand
Life of this patent
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Abstract
A vehicle having a multiple of level compensation systems is disclosed. The vehicle comprising a chassis having a left frame, a right frame and a base plate, a first level compensation system comprising a pivot joint for pivotably connecting the left and right frames to the base plate around a common rotational axis. A first axial distance from a left rotation axis of a left wheel pair to the rotational axis is different from at least one second axial distance from a right rotation axis of a right wheel pair to the rotational axis, such that the left and right wheel pair have at least one off-set to each other. Moreover a method for traversing stairs with such vehicle is disclosed.
Claims20
A vehicle having a multiple of level compensation systems, said vehicle comprising:
- a chassis having a left frame, a right frame and a base plate,
- a first level compensation system comprising a pivot joint for pivotably connecting said left and right frames to said base plate, whereby said left and right frames are rotatable with respect to each other around a common rotational axis, wherein said left and right frame extends in a direction perpendicular to said rotational axis,
- a left wheel pair comprising a left front wheel and a left rear wheel, the left front wheel and left rear wheels having left rotation axes and being mounted in opposite ends of said left frame,
- a right wheel pair comprising a right front wheel and a right rear wheel, the right front wheel and right rear wheels having right rotation axes and being mounted in opposite ends of said right frame,
- wherein at least one first axial distance from a left rotation axis of said left wheel pair to said rotational axis is different from at least one second axial distance from a right rotation axis of said right wheel pair to said rotational axis, such that said left and right wheel pair have at least one off-set to each other, comprising at least one wheel displacement unit arranged to displace at least one of said left front wheel and left rear wheel in relation to at least one of said right front wheel and right rear wheel to provide said off-set.
The vehicle according to claim 13, comprising a first and second support actuator pivotably mounted to said base plate at displaced first and second joints and pivotably mounted to said pivotable support at a common third joint.
The vehicle according to claim 52, wherein said second level compensation system comprise a support control unit connected to a level detection unit being adapted to provide levelling information to said support control unit, wherein said second level compensation system further comprise at least one support actuator connected to said support control unit and arranged to displace said pivotable support according to said levelling information.
Dependencies are inferred from the claim text.