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Class 903/918 - Continuously variable (EPO/JPO)


Subclass of Class 903 - Hybrid electric vehicles (hevs)
Definition: Subject matter under cross-reference art collection 902
No. of patents: 32
Last issue date: 09/23/2008


NumberTitleIssue Date
7426972Control device for vehicular drive system
A control device for a vehicular drive system including (a) a differential mechanism operable to distribute an output of an engine (8) to a first electric motor and a power transmitting member, (b) a second electric motor disposed in a power transmitting path...
09/23/2008
7377344Hybrid drive system for a motor vehicle
A hybrid drive system for a vehicle, comprising an internal-combustion engine, a generator, an electric motor, an electric energy accumulator, and a connection device for establishing mechanical connections between the internal-combustion engine, the generator, the ...
05/27/2008
7246672Hybrid-vehicle power train
A hybrid-vehicle power train connected to an engine comprises a motor, a CVT unit, a planetary gear unit having at least two input elements, namely, first and second input elements and an output element, a first clutch for engaging/disengaging the first input elemen...
07/24/2007
7000717Output power split hybrid electric drive system
A power split hybrid wheel drive system of the present invention comprises a planetary gear train (16) coupled to the output shaft of a driving engine (12). A primary motor or generator (18) is coupled to an output shaft of the planetary gear tr...
02/21/2006
6702715Power transmission
A power transmission comprises an engine E with a plurality of cylinders, a belt-type continuously variable transmission CVT, which changes the rotational speed being transmitted from the engine, a control valve CV, which variably sets the line pressure u...
03/09/2004
6692404Engine control system and method for hybrid vehicle
An engine control system for hybrid vehicles, so as to smoothly switch the driving operation from the cylinder-deactivated engine operation, in which at least a part of the total number of cylinders of the engine is deactivated, to the all-cylinder-activa...
02/17/2004
6684970Hybrid system for vehicle with 4WD start mode
A hybrid system or a control method for a vehicle having a first set of road wheels and a second set of road wheels is disclosed. The system comprises an engine controller for receiving a torque request for an engine driving torque and combining an idle s...
02/03/2004
6679796Transmission unit for hybrid vehicle
In a transmission unit for a hybrid vehicle, an electromagnetic clutch, a motor, and a continuously variable transmission CVT are disposed in the transmission unit and a resolver to detect a position of a rotor of the motor is disposed on an input axle to...
01/20/2004
6679214Control system and method for automatically stopping and starting vehicle engine
A control system for automatically stopping and starting the vehicle's engine is disclosed, which performs the automatic engine-stop and start control while the negative pressure of the fuel tank is maintained at a suitable level. The system comprises a c...
01/20/2004
6672415Moving object with fuel cells incorporated therein and method of controlling the same
In a hybrid vehicle with fuel cells and an engine mounted thereon as energy output sources, a technique is employed that adequately changes a working energy output source according to a driving state of the hybrid vehicle. The hybrid vehicle has the engin...
01/06/2004
6663524Hybrid power system
A hybrid power system, comprising a first power unit, a secondary shaft, a speed converter, a clutch, and an electric motor. The first power unit has a primary shaft. The secondary shaft is driven by the primary shaft in a rotational movement. The speed c...
12/16/2003
6662096Vehicle drive system and vehicle controlling method
A minimum needed power is computed by adding a reserve drive power to a target drive power, a best fuel cost-performance rotation speed is computed based on the target drive power and the best fuel cost-performance power characteristics of an engine (1), ...
12/09/2003
6659910Hybrid power system with continuously variable speed
A hybrid power system with continuously variable speed, comprising a first power unit, a secondary shaft, a speed converter, a clutch, a second transmission device, and an electric motor. The first power unit has a primary shaft. The secondary shaft is dr...
12/09/2003
6656069Transmission unit
A transmission unit includes a transmission mechanism and a hydraulic control valve unit for controlling the transmission mechanism. The hydraulic control valve unit is disposed at a plane parallel to an axis of the transmission mechanism. A housing enclo...
12/02/2003
6656083Hybrid drive system
A hybrid drive system comprises an oil pump for forcing an operating oil to a transmission, an engine operationally connected to the oil-operated transmission through a first clutch, a battery-operated traction motor operationally connected to the transmi...
12/02/2003
6655485Hybrid drive system wherein clutch in engaged when engine speed has exceeded motor speed upon switching from motor drive mode to engine drive mode
A hybrid vehicle drive system including (a) an engine, (b) an electric motor, (c) a planetary gear device having a first rotary element connected to the engine, a second rotary element connected to the electric motor and connected through a first clutch t...
12/02/2003
6651436Hybrid vehicle control apparatus
A control apparatus for a hybrid vehicle of the present invention determines whether a brake switch flag F_BKSW is "1" or not (step S101), and in the case where the brake is on ("yes"), obtains a deceleration regeneration computation value DECRGN by table...
11/25/2003
6641501Control apparatus for hybrid vehicle
A hybrid vehicle control apparatus is provided, wherein an unpleasant sensation is not imparted to a driver depressing an accelerator pedal at the time of departure. In a hybrid vehicle control apparatus with an engine and a motor as the drive sources, an...
11/04/2003
6637530Hybrid vehicle control apparatus wherein battery is charged based on required charging amount and/or energy conversion efficiency of electric generator
A control apparatus for controlling a hybrid automotive vehicle including an engine and an electric motor as drive power sources for driving the vehicle, and an electric generator operable by the engine to charge a battery while the vehicle is driven by t...
10/28/2003
6638022Hybrid vehicle control device
A hybrid vehicle includes: a metal V-belt type infinitely variable gear-change mechanism 20 whereby the rotation of an engine E is subjected to change in gear ratio, a forwards clutch 14 and a reverse brake 15 that perform engagement/disengagement control...
10/28/2003
6629515Engine control device
An engine control device is provided, capable of restarting the engine when starting the vehicle rapidly and without giving any feeling of unease to the driver at the time of starting the vehicle by restarting the engine from the idle stop state. The engi...
10/07/2003
6629024Control apparatus for variable-cylinder engine, and control apparatus for vehicle
A control apparatus for a variable-cylinder engine of a vehicle, including a regenerative-braking-state detecting device operable to detect a regenerative braking state of the vehicle, and a decompression-state setting device arranged to place selected on...
09/30/2003
6629027Control device and control method for hybrid vehicle
A control device and control method for a hybrid vehicle is disclosed having an electric storage detecting section 13 which detects a state of charge (SOC) of an electric storage device 10. A target running efficiency calculating section 14 serves as a un...
09/30/2003
6621175Engine control system for hybrid vehicle
An engine control system for a hybrid vehicle having an internal combustion engine and an electric motor as driving force sources, for permitting stopping and starting of the engine in accordance with predetermined drive conditions. The system includes a ...
09/16/2003
6615940Control system for vehicle having fuel cell
A control system of a vehicle including a fuel cell and an electric motor that drives drive wheels of the vehicle with electric energy generated by the fuel cell is provided wherein a traction controller controls the output of the drive wheels so as to se...
09/09/2003
6617703Auxiliary drive and automobile equipped with the same
There are included a first motor-generator; speed change device disposed between an engine and a first wheel drive shaft; demanded braking force detection device for detecting braking force demanded by the driver; engine braking force calculation device f...
09/09/2003
6616570Control apparatus for hybrid vehicle
A hybrid vehicle control apparatus is provided which can improve fuel consumption. There is provided: a cylinder cut-off determination section for determining whether all cylinders should be cut off; a cylinder cut-off cancellation determination section f...
09/09/2003
6244368Hybrid powered vehicle
A hybrid powered vehicle of the present invention reduces the vibrations caused by changes in torque to thereby achieve excellent driving characteristics. The hybrid powered vehicle has an electric motor, an engine and a vehicle driving power source, whic...
06/12/2001
4588040Hybrid power system for driving a motor vehicle
A triple hybrid power system for driving a motor vehicle utilizing an internal combustion engine to drive an electric generator to charge a bank of batteries that provide electrical energy to drive an electric motor/generator that supplies power to a plan...
05/13/1986
4455492Power unit for motor vehicle utilizing a thermal engine down to the lowest running speeds
Power unit for automobile vehicle utilizing an internal combustion engine down to the lowest rotation speeds. Power unit for automobile vehicle comprising an internal combustion engine with its conventional inertia flywheel, a reversible electric machine, a ...
06/19/1984
4165795Hybrid automobile
A parallel hybrid drive system for self propelled vehicles including a direct current motor-generator having a drive shaft in common with an internal combustion engine leading to a variable speed transmission and a final drive train. The motor-generator h...
08/28/1979
4042056Hybrid powered automobile
A gasoline and battery-powered electric automobile wherein the start and the running of the car are effected by an electric motor except in circumstances where the battery charge is depleted, in which case the normal cruising and higher speeds are then ob...
08/16/1977
 
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