What is claimed is:
1. A clutch control apparatus for a vehicle, comprising:
a clutch disk disposed opposite a flywheel which rotates unitarily with an output shaft of a drive unit;
a pressure plate for applying a press-contact load to said clutch disk so as to press said clutch disk toward said flywheel to thereby engage said clutch disk with said flywheel;
a diaphragm spring for causing said pressure plate to generate the press-contact load;
an actuator for generating and applying a force to a predetermined portion of said diaphragm spring by moving a member to deform said diaphragm spring for disengaging said clutch disk from said flywheel according to driving conditions of the vehicle;
said clutch control apparatus further comprising press-contact load adjustment means for modifying the press-contact load by modifying a posture of said diaphragm spring as observed when said clutch disk is engaged with said flywheel, according to an instruction;
stroke estimation means for estimating a stroke of said member on the basis of an calculated ideal reaction force to be imposed on said member through said diaphragm spring and an estimated force generated by said actuator;
stroke detection means for detecting an actual stroke of said member; and
adjustment instruction means for providing said press-contact load adjustment means with said instruction such that the detected stroke becomes equal to the estimated stroke to thereby make adjustment.
2. A clutch control apparatus according to claim 1, wherein said stroke estimation means further comprising:
ideal reaction-force calculation means for calculating said ideal reaction force to be imposed on said member on the basis of a stroke of said member which has been estimated a predetermined time beforehand; and
actuator force estimation means for estimating said estimated force to be generated by said actuator on the basis of a drive signal issued to said actuator.
3. A clutch control apparatus according to claim 2, wherein said stroke estimation means estimates said stroke by integrating stroke speed of said member, the stroke speed being calculated by integrating stroke acceleration of said member which is calculated on the basis of said ideal reaction-force and said estimated force.
4. A clutch control apparatus according to claim 1, wherein said adjustment instruction means provides said instruction only when a difference between the detected stroke and the estimated stroke becomes larger than a predetermined amount.
5. A clutch control apparatus according to claim 1, wherein said adjustment instruction means does not provide said instruction when said clutch disk engages with said flywheel according to driving conditions of the vehicle.
6. A clutch control apparatus according to claim 1, wherein said adjustment instruction means does not provide said instruction when the vehicle is parked with clutch disk being engaged.
7. A clutch control apparatus according to claim 1, wherein said adjustment instruction means does not provide said instruction when the rotational seed of the drive unit of the vehicle is lower than a predetermined speed.
8. A clutch control apparatus according to claim 1, wherein said adjustment instruction means does not provide said instruction when resonance of the clutch occurs due to vibration of the drive unit.
9. A clutch control apparatus according to claim 1, wherein said adjustment instruction means does not provide said instruction when the rotational seed of a drive unit of the vehicle is higher than a predetermined speed.
10. A clutch control apparatus according to claim 1, wherein said adjustment instruction means does not provide said instruction when the seed of an the vehicle is not zero.
11. A clutch control apparatus according to claim 1, further comprising:
a release bearing which comes into contact with said diaphragm spring;
a release fork for moving said release bearing through application of pressure;
a rod as said member of said actuator for deflecting said release fork in order to move said release bearing through application of pressure.
12. A clutch control apparatus according to claim 1, wherein said press-contact load adjustment means includes a mechanism to modify a distance between an outer circumferential portion of said diaphragm spring and said pressure plate.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A measuring device for detecting dimensions of test samples in the form of hollow bodies having a recess, the measuring device comprising:
at least one light source emitting a light beam;
a beamsplitter arranged downstream of the light source and configured to split the light beam into a reference beam and a measuring beam;
a reference mirror arranged downstream of the beam splitter, wherein the measuring beam forming a measuring arm is supplied to a measuring location of a test sample and is reflected on the measuring location as a first reflected beam and the reference beam forming a reference arm is supplied to the reference mirror and is reflected on the reference mirror as a second reflected beam;
wherein the first and second reflected beams are temporally incoherent and are recombined on the beamsplitter to form a recombined beam;
a receiver arranged such that the recombined beam impinges on the receiver;
wherein the reference mirror and the receiver are laterally displaced away from an optical axis of the measuring device at lateral spacing relative to the optical axis;
wherein the measuring device is configured to be integrated into a tool or to be connected to a tool receptacle.
2. The measuring device according to claim 1, wherein the light source and the reference mirror have a lateral displacement relative to the optical axis of the measuring device and are positioned on the same side of the beam splitter.
3. The measuring device according to claim 1, wherein the beam splitter guides the reference beam directly onto the reference mirror.
4. The measuring device according to claim 1, wherein the axis of the reference beam between the beamsplitter and the reference mirror extends angularly to the optical axis of the measuring device.
5. The measuring device according to claim 1, wherein an optical travel distance difference (\u0394s) between the measuring arm and the reference arm is tuned.
6. The measuring device according to claim 1, further comprising a computer, wherein the receiver is connected to the computer and the computer evaluates the signals received from the receiver.
7. The measuring device according to claim 6, further comprising an analogdigital converter positioned the receiver and the computer.
8. The measuring device according to claim 1, wherein a tool in which the measuring device is arranged has at least one through opening allowing the measuring beam to reach the measuring location.
9. The measuring device according to claim 1, wherein the measuring device is driven in rotation about an axis of the measuring device.
10. The measuring device according to claim 1, wherein the measuring device, when arranged in a tool is driven in rotation about an axis of the measuring device.
11. The measuring device according to claim 1, wherein the measuring device is rotated together with a tool in which the measuring device is arranged.
12. The measuring device according to claim 1, further comprising a protective housing for enclosing at least one of the light source, the beam splitter, the reference mirror, and the receiver, wherein the housing is arranged in the tool.
13. The measuring device according to claim 12, wherein at least one part of the measuring device is movable in the direction of an axis of the measuring device.
14. The measuring device according to claim 13, wherein the housing is axially movable within the tool.
15. The measuring device according to claim 12, further comprising a linear drive controlled by a computer for moving the at least one part of the measuring device.
16. The measuring device according to claim 1, further comprising a travel measuring system, wherein the measuring device and the tool in which the measuring device is arranged are axially movable, and wherein the travel measuring system is configured to detect a travel distance of the measuring device.
17. The measuring device according to claim 16, wherein the travel measuring system is arranged in the tool.
18. The measuring device according to claim 1, wherein the reference mirror is positioned spaced from an axis of rotation of the measuring device.
19. A measuring device for detecting dimensions of test samples in the form of hollow bodies having a recess, the measuring device comprising:
at least one light source emitting a light beam;
a beamsplitter arranged downstream of the light source at a slant to an optical axis of the measuring device and configured to split the light beam into a reference beam and a measuring beam;
a reference mirror arranged downstream of the beam splitter and laterally displaced away from an optical axis of the measuring device at a lateral spacing relative to the optical axis, wherein the measuring beam forming a measuring arm is supplied to a measuring location of a test sample and is reflected on the measuring location as a first reflected beam and the reference beam forming a reference arm is supplied to the reference mirror and is reflected on the reference mirror as a second reflected beam;
wherein the first and second reflected beams are temporally incoherent and are recombined on the beamsplitter to form a recombined beam;
a receiver arranged such that the recombined beam impinges on the receiver;
wherein the measuring device is configured to be integrated into a tool or to be connected to a tool receptacle.
20. The measuring device according to claim 19, wherein the light source is positioned on the optical axis of the measuring device.
21. The measuring device according to claim 19, wherein the receiver is positioned on the optical axis of the measuring device.
22. The measuring device according to claim 19, wherein an optical travel distance difference (\u0394s) between the measuring arm and the reference arm is tuned.
23. The measuring device according to claim 19, further comprising a computer, wherein the receiver is connected to the computer and the computer evaluates the signals received from the receiver.
24. The measuring device according to claim 23, further comprising an analogdigital converter positioned between the receiver and the computer.
25. The measuring device according to claim 19, wherein a tool in which the measuring device is arranged has at least one through opening allowing the measuring beam to reach the measuring location.
26. The measuring device according to claim 19, wherein the measuring device is driven in rotation about an axis of the measuring device.
27. The measuring device according to claim 19, wherein the measuring device, when arranged in a tool is driven in rotation about an axis of the measuring device.
28. The measuring device according to claim 19, wherein the measuring device is rotated together with a tool in which the measuring device is arranged.
29. The measuring device according to claim 19, further comprising a protective housing for enclosing at least one of the light source, the beam splitter, the reference mirror, and the receiver, wherein the housing is arranged in the tool.
30. The measuring device according to claim 29, wherein at least one part of the measuring device is movable in the direction of an axis of the measuring device.
31. The measuring device according to claim 30, wherein the housing is axially movable within the tool.
32. The measuring device according to claim 29, further comprising a linear drive controlled by a computer for moving the at least one part of the measuring device.
33. The measuring device according to claim 19, further comprising a travel measuring system, wherein the measuring device and the tool in which the measuring device is arranged are axially movable, and wherein the travel measuring system is configured to detect a travel distance of the measuring device.
34. The measuring device according to claim 33, wherein the travel measuring system is arranged in the tool.
35. The measuring device according to claim 19, wherein the reference mirror is positioned spaced from or on an axis of rotation of the measuring device.