About 81 results
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...
https://drivepatents.com/patents/979764 · 15 Jan 2014
An object of the present invention is to provide a structure that does not require a knuckle on the vehicle body side while improving the rotational accuracy of an input shaft of a speed reduction unit, increasing the durability of bearings, and suppressin...
https://drivepatents.com/patents/979734 · 15 Jan 2014
A diagnostic apparatus for diagnosing a drive motor of a vehicle includes a start-up abnormality detection section to detect coil temperature, coil resistance or insulation resistance of a motor coil during a non-traveling time in which electric power supp...
https://drivepatents.com/patents/979644 · 15 Jan 2014
The invention relates to a suspension and drive device for driving a spring-mounted wheel of a road vehicle, comprising bearings connected in spring-mounted manner to the road vehicle, a wheel shaft mounted in the bearings and provided with a coupling flan...
https://drivepatents.com/patents/979934 · 8 Jan 2014
An assembly of the undirected axle (1) of a tyre roller or a combined roller, in particular of a road roller, with driven wheels (12) provided with tyres (4), which wheels (12) are arranged at least on both sides of said axie (1), wherein said axie (1) is ...
https://drivepatents.com/patents/980261 · 1 Jan 2014
An electric vehicle includes an inverter unit (22). The inverter unit (22) includes a torque fluctuation estimator (37) configured to estimate, according to a predefined rule, a torque fluctuation that is inclusive of fluctuations in torque attributable to...
https://drivepatents.com/patents/980249 · 1 Jan 2014
An electric vehicle includes a malfunction detector (37) configured to continuously monitor a torque command from an ECU (21) as well as one of the followings: signals indicating a rotational frequency of a motor unit (6); signals indicating a rotational f...
https://drivepatents.com/patents/980244 · 1 Jan 2014
An electric vehicle includes an inverter unit (22) and an ECU (21). The inverter unit (22) or the ECU (21) includes a magnetic force estimator (38) that estimates a magnetic force of a permanent magnet structure associated with a motor rotor of a motor uni...
https://drivepatents.com/patents/980533 · 25 Dec 2013
A gear system 1 includes: an internal gear 12; an external gear 11; an input shaft 10 rotatably inserted into a center hole 11a formed in the external gear 11; and an anti-rotation section 19 configured to block rotation of the external gear 11. The input ...
https://drivepatents.com/patents/980522 · 25 Dec 2013
An object of the present invention is to remove adverse effects on an in-wheel motor driving apparatus due to the existence of moisture in the apparatus. There is provided an in-wheel motor driving apparatus in which a driving apparatus for generating driv...