Two-wheeled vehicle having a drive and brake power restriction on the basis of spring travel, as well as associated control unit

Patent metadata

Field	Value
Publication number	US-10023186-B2
Application number	US-201415100763-A
Country	US
Kind code	B2
Filing date	Oct 2, 2014
Priority date	Dec 3, 2013
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A two-wheeled vehicle having a first spring device of a front wheel and a second spring device of a rear wheel, and at least one acceleration and rate-of-rotation sensor, which are situated on a vehicle frame and are operationally connected to a control device, wherein the first and the second spring devices are provided with a spring travel sensor in each case, which are operationally connected to the control device.

First claim

What is claimed is:

1. A control unit for use on a two-wheeled vehicle, the two-wheeled vehicle including a first spring device of a front wheel, a second spring device of a rear wheel, and at least one acceleration and rate-of-rotation sensor, which are situated on a vehicle frame, wherein the two-wheeled vehicle has a first and a second spring sensor, which are situated on the first and on the second spring devices, respectively, wherein the control unit is designed to at least one of:
i) activate a drive torque control at the rear wheel only when a maximum spring travel at the front wheel has been reached, and
ii) activate a brake force control at the front wheel only when a maximum spring travel at the rear wheel has been reached;
wherein the control unit is further designed to perform an online calibration for determining the available spring travels when the two-wheeled vehicle is in a position in which the acceleration and rate-of-rotation sensor outputs an angle of essentially zero in relation to the direction of the earth's gravitational force.

2. The control unit as recited in claim 1 , wherein at least one of the brake force control and the drive torque control is carried out as a function of a coefficient of friction of at least one of the front wheel and the rear wheel.

3. The control unit as recited in claim 1 , wherein at least one of the brake force control and the drive torque control is carried out as a function of limits of lateral guidance forces of at least one of the front wheel and the rear wheel.

4. A two-wheeled vehicle having a first spring device of a front wheel, a second spring device of a rear wheel, and at least one acceleration and rate-of-rotation sensor, which are situated on a vehicle frame, operationally connected to a control unit, the first and the second spring devices respectively provided with a spring travel sensor, which are operationally connected to the control device, the control device designed so that at least one of: i) a drive torque control at the rear wheel is activated only when a maximum spring travel at the front wheel has been reached, and ii) a brake force control at the front wheel is activated only when a maximum spring travel at the rear wheel has been reached, wherein an online calibration for determining the available spring travels takes place in a position in which the acceleration and rate-of-rotation sensor outputs an angle of essentially zero in relation to the direction of the earth's gravitational force.

5. The two-wheeled vehicle as recited in claim 4 , wherein at least one of the brake force control and the drive torque control is carried out as a function of a coefficient of friction of at least one of the front wheel and the rear wheel.

6. The two-wheeled vehicle as recited in claim 4 , wherein at least one of the brake force control and the drive torque control is carried out as a function of limits of lateral guidance forces of at least one of the front wheel and the rear wheel.

Assignees

• Bosch Gmbh Robert

Inventors

• Moerbe Matthias

Classifications

• B60W2720/30

  Wheel torque · CPC title

• B60W10/184

  with wheel brakes · CPC title

• B60W2030/041

  about the pitch axis · CPC title

• B60W2710/182

  Brake pressure, e.g. of fluid or between pad and disc · CPC title

• B60W10/06

  including control of combustion engines · CPC title