Control unit that adjusts a tilt angle of a tilting vehicle
The disclosure concerns a tilting vehicle with at least one multi-wheel axle, a vehicle structure and a control unit that is arranged to detect a lateral acceleration acting on the tilting vehicle and actively adjust a tilt angle of the structure of the vehicle about the longitudinal axis thereof. In order to optimize adjustment of the tilt angle in a tilting vehicle, the control unit is arranged to adjust the tilt angle so that in a direction of a lateral axis of the structure of the vehicle, a Y component of the lateral acceleration is partially compensated by a Y component of acceleration due to gravity according to a specified compensation proportion. The compensation proportion increases as a function of the lateral acceleration to a global maximum value at a first acceleration, and decreases above the first acceleration.
1. A tilting vehicle, comprising:
at least one multi-wheel axle arranged on a vehicle structure; and
a control unit that is arranged to detect a lateral acceleration acting on the tilting vehicle and actively adjust a tilt angle of the structure about a longitudinal axis of the structure such that, in a direction of a lateral axis of the structure, a Y-component of the lateral acceleration is partially compensated by a Y-component of gravity corresponding to a specified compensation proportion that increases monotonically as a function of the lateral acceleration to a global maximum value at a first acceleration and decreases above the first acceleration.
2. The tilting vehicle as claimed in claim 1 , wherein the specified compensation proportion at the first acceleration is less than 70%.
3. The tilting vehicle as claimed in claim 1 , wherein the specified compensation proportion is a continuous function of the lateral acceleration.
4. The tilting vehicle as claimed in claim 1 , wherein the first acceleration lies between 3 m/s 2 and 6 m/s 2 .
5. The tilting vehicle as claimed in claim 1 , wherein the specified compensation proportion at zero acceleration is no greater than 10%.
6. The tilting vehicle as claimed in claim 1 , wherein the specified compensation proportion decreases monotonically above the first acceleration.
7. The tilting vehicle as claimed in claim 1 , wherein, from the first acceleration at least up to twice the first acceleration, the specified compensation proportion lies above an intermediate value that has a value of at least 50%.
8. The tilting vehicle as claimed in claim 7 , wherein the specified compensation proportion increases monotonically to the intermediate value up to a second acceleration that is lower than the first acceleration.
9. The tilting vehicle as claimed in claim 8 , wherein the second acceleration lies between 1 m/s 2 and 2.5 m/s 2 .
10. A vehicle tilt technology system comprising:
a multi-wheel axle arranged across a longitudinal axis of a vehicle structure; and
a control unit configured to actively adjust a structure tilt angle such that, in a direction of a lateral axis of the structure, a lateral acceleration Y-component is partially compensated by a gravity Y-component at a specified compensation proportion that monotonically increases with the lateral acceleration to a maximum at, and decreases below, a first acceleration.
11. The vehicle tilt technology system as claimed in claim 10 , wherein the specified compensation proportion decreases monotonically above the first acceleration.
12. The vehicle tilt technology system as claimed in claim 10 , wherein, from the first acceleration at least up to twice the first acceleration, the specified compensation proportion lies above an intermediate value that has a value of at least 40%.
13. The vehicle tilt technology system as claimed in claim 12 , wherein the specified compensation proportion increases monotonically to the intermediate value up to a second acceleration that is lower than the first acceleration.
14. An apparatus for vehicle tilt technology comprising:
a control unit that is arranged to, in response to a lateral acceleration acting on a tilting vehicle, actively adjust a tilt angle of a structure about a longitudinal axis such that, in a direction of a lateral axis of the structure, a Y-component of the lateral acceleration is partially compensated by a Y-component of gravity corresponding to a specified compensation proportion that monotonically increases as a function of the lateral acceleration to a global maximum value at a first acceleration and decreases above the first acceleration.
15. The apparatus for vehicle tilt technology as claimed in claim 14 , wherein the specified compensation proportion decreases monotonically above the first acceleration.
16. The apparatus for vehicle tilt technology as claimed in claim 14 , wherein, from the first acceleration at least up to twice the first acceleration, the specified compensation proportion lies above an intermediate value that has a value of at least 30%.
17. The apparatus for vehicle tilt technology as claimed in claim 16 , wherein the specified compensation proportion increases monotonically to the intermediate value up to a second acceleration that is lower than the first acceleration.