About 201 results
Showing the first 200 results.
https://drivepatents.com/patents/975956 · 23 Apr 2014
Provided are a face spline forming apparatus and a face spline forming method, with which fluctuation of an inner diameter of a cup section can be suppressed and a face spline can be formed stably. An outer joint member formed by the face spline forming ap...
https://drivepatents.com/patents/975865 · 23 Apr 2014
One object of the present invention is to provide a method for manufacturing a wheel bearing apparatus which can easily and efficiently perform the clearance control of the bearing and stably apply an accurate clearance. According to the present invention,...
https://drivepatents.com/patents/976968 · 26 Mar 2014
An object is to reduce various losses occurring in a speed-reduction/differential gear apparatus for electric vehicles including a planetary-gear speed reducer and a differential device, thereby improving transmission efficiency of the driving force and in...
https://drivepatents.com/patents/977299 · 19 Mar 2014
A wheel support bearing assembly, including rolling elements interposed between raceway surfaces of an outer member and an inner member, one of the members serving as a stationary member, a plurality of sensor units, each including a strain generator membe...
https://drivepatents.com/patents/977942 · 5 Mar 2014
A method of producing a rolling contact member comprising the steps of:preparing a powdery source material that contains as a main component a ²-sialon represented by a compositional formula of Si6-ZAlZOZN8-Z and satisfying 0.1 ¤ z ¤ 3.5 and has a remai...
https://drivepatents.com/patents/979027 · 5 Feb 2014
One object of the present invention is to provide a wheel bearing apparatus which can prevent generation of corrosion with improving the sealability between the outer member and the knuckle as well as ensure the sealing property for a long term with improv...
https://drivepatents.com/patents/979416 · 22 Jan 2014
A motor drive device (20) includes a circuit (31) (e.g., an inverter) with a connection configuration that is switchable among: (a) a drive operative connection configuration that allows a motor unit (6) to be driven with power supplied from a battery unit...
https://drivepatents.com/patents/979765 · 15 Jan 2014
An electric vehicle includes an in-wheel motor drive system (8). The in-wheel motor drive system (8) includes a wheel bearing unit (4) rotatably supporting a drive wheel (2), a motor unit (6), and a reducer unit (7). The electric vehicle also includes a di...
https://drivepatents.com/patents/979772 · 15 Jan 2014
An electric vehicle including a plurality of motors for individually driving left and right drive wheels is provided with a motor abnormality detector for detecting the occurrence of an abnormality in each of the motors and one side abnormality response co...
https://drivepatents.com/patents/979770 · 15 Jan 2014
An object of the present invention is to prevent lubricant oil of a speed reduction unit from moving to an electric motor side and besides to prevent an eccentric load from acting on bearings supporting an input shaft. In a drive device for an electric veh...