Method and device for operating a starter of a vehicle

Patent metadata

Field	Value
Publication number	US-9518549-B2
Application number	US-201113304831-A
Country	US
Kind code	B2
Filing date	Nov 28, 2011
Priority date	Dec 1, 2010
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

In a method for operating a starter of a vehicle, a position of a starter pinion is detected, and an advance of the starter pinion is regulated as a function of the detected position. For example, the advance during the meshing of the starter pinion with a starter ring gear of a drive motor of the vehicle is regulated.

First claim

What is claimed is:

1. A method for operating a starter of a motor vehicle, the method comprising:
providing a coil assemblage to build up a magnetic flux for an inductive advance of a starter pinion, wherein the coil assemblage has a sliding bushing configured to provide a displacement of an armature coupled to the starter pinion;
detecting a speed of advance of the starter pinion relative to a starter ring gear;
detecting a position of a starter pinion; and
regulating an advance of the starter pinion as a function of the detected position and the detected speed of advance of the starter pinion relative to the starter ring gear;
wherein a meshing mechanism includes the coil assemblage, a sensor to detect the position of the starter pinion; and an advance control to regulate the advance of the starter pinion;
wherein the meshing mechanism is disposed concentrically around the starter pinion.

2. The method as recited in claim 1 , wherein the detection of the position of the starter pinion includes detection of an induction change in response to the advance of the starter pinion.

3. The method as recited in claim 2 , wherein the advance during the meshing of the starter pinion with a starter ring gear of a drive motor of the vehicle is regulated.

4. The method as recited in claim 3 , wherein the starter pinion is rotated during the meshing, in order to feel into a space between two teeth of the starter ring gear.

5. The method as recited in claim 4 , wherein the starter pinion is rotated pulse-by-pulse.

6. The method as recited in claim 1 , wherein upon detecting a contact of a starter pinion tooth with a tooth of the starter ring gear, the starter pinion is moved in a direction counter to the direction of the advance, in order to create a distance between the starter pinion tooth and the tooth of the starter ring gear.

7. The method as recited in claim 6 , wherein after the distance has been created, the starter pinion is rotated and moved in the direction of the starter ring gear in order to mesh with the starter ring gear.

8. A device for operating a starter of a vehicle, comprising:
a meshing mechanism, including:
a coil assemblage to build up a magnetic flux for an inductive advance of the starter pinion;
a sensor configured to detect a position of a starter pinion; and
an advance control configured to regulate an advance of the starter pinion as a function of the detected position;
wherein the sensor has a sensor coil disposed in the coil assemblage for detecting an induction change in response to the advance of the starter pinion, and wherein the coil assemblage has a sliding bushing configured to provide a displacement of an armature coupled to the starter pinion, and
wherein the meshing mechanism is disposed concentrically around the starter pinion.

9. The device as recited in claim 8 , wherein the sliding bushing has at least one magnetizable ring for influencing the magnetic flux.

10. The device as recited in claim 9 , wherein the at least one magnetizable ring is disposed one of displaceably or fixedly in the sliding bushing.

11. The device as recited in claim 8 , wherein a spring is provided to retain the starter pinion in a position of rest, the spring being disposed in a drive shaft of the starter.

Assignees

• Weinum Matthieu
• Eschenhagen Marc
• Jensen Benjamin
• Jesse Andreas
• Merkle Michael
• Bosch Gmbh Robert

Inventors

• Weinum Matthieu
• Eschenhagen Marc
• Jensen Benjamin
• Jesse Andreas
• Merkle Michael

Classifications

• F02N15/06 Primary

  the toothed gears being moved by axial displacement · CPC title

• F02N2200/047

  Information about pinion position · CPC title

• F02N2200/048

  Information about pinion speed, both translational or rotational speed · CPC title

• F02N11/0851

  characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear · CPC title