Abstract:
PROBLEM TO BE SOLVED: To reduce emission from an internal combustion engine, and to satisfy a travel request from an operator as much as possible, in a vehicle provided with the internal combustion engine and an electric motor. SOLUTION: A hybrid automobile 20 controls the internal combustion engine 22 and the electric motors MG1, MG2, based on the required torque Tr* required for travel and set based on an operation of the operator, while the engine 22 operates with all cylinders, in a normal operation where a catalyst temperature Tc of an exhaust emission control device 25 is an emission control temperature Tcref or more and a cylinder stop condition is not satisfied. On the other hand, the engine 22 operates in a cylinder stop state where some of the cylinders of the engine 22 are stopped, in a warm-up operation where the catalyst temperature Tc is less than the emission control temperature Tcref, and at least part of a reduced driving force of the engine 22 generated by stopping the cylinders out of the required torque Tr* is output from the motor MG2, at a speed of the engine 22 that reduces the amount of exhaust to be supplied to the exhaust emission control device 25, compared with that in the normal operation. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a clamp device capable of improving working efficiency of a worker upon mounting a new member of a clamp device having a plurality of members already clamped therein in a state of the clamp device being disposed near a proximal member, and securing rigidity of a portion for placing a finger upon clamping a clamping object member such as new wiring. SOLUTION: This clamp device includes: a first recessed part 21a formed on a second main surface 32 positioned in the thickness direction with respect to a first main surface 30 opposing the proximal member 50; a first grip part 32 capable of gripping a first clamping object member 14; a second recessed part 24a formed on one first side surface 31 out of first and second side faces 31, 33 arranged in the width direction; a second grip part 24 capable of gripping a second clamping object member 12; and a thick part 33a for the second grip part 24 formed at a portion of the second side surface 33 positioned in the width direction with respect to the second recessed part 24a, and made thicker than a thickness t1 in the width direction of a portion of the second side surface 33 positioned in the width direction with respect to an opening edge of the first recessed part 21a. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a hybrid car which reduced a feeling of incompatibility in performing operation check. SOLUTION: A hybrid car 100 is provided with an engine 1; an oxygen sensor 22 as a gas sensor arranged in an exhaust passageway 54 of the engine 1 for detecting an air-fuel ratio; a motor for generating a power for promoting a vehicle; and a control device for controlling the engine 1 and the motor. The control device performs correction by the learning of the output of the gas sensor in each of a plurality of regions whose intake air quantity is different. The control device performs the operation confirmation of the gas sensor in the region whose learning has ended among the plurality of regions, and inhibits the operation confirmation of the gas sensor in the region whose learning has not been performed among those plurality of regions. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To positively change opening/closing timing of an intake valve to the latest phase lag timing upon stopping operation of an internal combustion engine and to improve startability of the engine when starting next. SOLUTION: When a cooling water temperature Tw of the engine is determined to be in an engine stoppable state due to a low water temperature wherein the engine operation may be stopped by ignition-off in a state of the engine being cold-started based on a vehicle speed V and request power Pe* under a condition of the cooling water temperature Tw being less than a threshold value T1 (S420), target opening/closing timing VT* of an intake valve is restricted by predetermined timing VT2 and a VVT motor is driven (S430, S440), and the VVT motor is driven so that when operation stop of the engine is instructed, the opening/closing timing of the intake valve is changed toward a latest phase lag timing VT1. Thereby, opening/closing timing VT of the intake valve can be positively changed toward the latest phase lag timing VT1 and the startability of the engine when starting next can be improved. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the starting characteristics of an internal-combustion engine when it is restarted. SOLUTION: When the operation stop conditions are established (S130) where the ignition is put off and the temperature Tw of the engine cooling water is below the reference value Tref, the first motor is controlled so that the engine is put in motoring at the prescribed engine speed Nidl for a prescribed period of time in the condition that the fuel to engine is cut off (S140, S150). Thereupon a VVT motor able to operate only while an intake cam shaft is rotating in association with the rotation of a crank shaft of the engine is put in the operable condition, and the VVT motor is operated so that the opening/closing timing VT of a suction valve is altered toward the most delayed angle timing VT1 (S110). This reduces the energy required to make the compression stroke when the engine is started next, so that the starting characteristics when the engine is restarted can be enhanced. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a vehicle control device capable of restraining erroneous determination that an abnormality has occurred, when determining the existence of the occurrence of the abnormality on a sensor for detecting a rotating position. SOLUTION: A crank angle estimating part 320 estimates an estimated crank angle CRK of a crankshaft based on a rotating speed MRN1 and MRN2 of a motor generator. A crank angle variation calculating part 322 calculates an angle variation ΔCRK between continuous two pulses of a cam angle signal CP. When the angle variation ΔCRK is smaller than a minimum angle interval ΔCPmin, it is determined as the occurrence of chattering in the cam angle signal CP, and when first and second condition signals are activated, a mask signal MSK is issued, and an abnormality determining signal FLT is invalidated. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a vehicle capable of exhibiting higher travel performance while maintaining a noise level in a cabin. SOLUTION: In ANC operation, an operation characteristic of relieving at least one restriction of a noise quantity and a vibration quantity generated from an engine more than ANC non-operation is used. In more details, in a map in the ANC operation, an engine speed NE allowed for generating a predetermined load ratio KL is regulated so as to include a lower range than a map in the ANC non-operation for obtaining the higher fuel consumption ratio. In the ANC operation, the engine is controlled by being switched to the operation characteristic of the higher fuel consumption ratio. Noise intruding into the cabin is also likely to be enlarged according to the operation characteristic in this ANC operation, but the noise quantity felt by a driver is maintained or restrained in the same degree as the ANC non-operation by the ANC operation. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To promptly output power based on demands of a driver while suppressing vibration upon starting of an internal combustion engine. SOLUTION: When automatically starting an engine, upon a normal engine start, the amount of intake air is reduced by tightening the opening of a throttle valve (S140). When the driver presses down hard on the accelerator pedal, and an engine request power Pe* is a threshold value Pref or more, the throttle valve opening is an opening according to the request engine power Pe* (normal opening) and the amount of intake air is an amount corresponding to the engine demand power Pe* (S150). Cranking is performed to start the engine. Thereby, on a normal start of the engine, vibration at initial explosion can be suppressed, and when the requested engine power Pe* is large, driving power from the engine can be promptly outputted. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To restrain degradation in an engine from proceeding even though automatic start and stop of the engine are repeated. SOLUTION: Automatic stop time-period T of the engine 20 is not substantially limited before the number of times N of starting in an oil-film runout state (the number of times of starting the engine 20 in an oil-film runout state) reaches N1, but after the number of times N of starting in an oil-film runout state has reached N1, the automatic stop time-period is limited. Particularly when the number of times N of starting in an oil-film runout state has reached a threshold Nthr, the stop permissible time Tp is set at oil-film runout time limit Tlim. As a result, when the automatic stop time-period T exceeds the Tlim, the engine 20 is automatically started. When the number of times N of starting in an oil-film runout state has reached the threshold Nthr, even though the engine 20 has automatically stopped, the engine is not started in the runout oil-film state, so the engine degradation hardly proceeds. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To restrain the adjustment, accompanied with operation of an internal combustion engine from being interrupted, by enabling excessive power generated by execution of adjustment to be charged in a battery 50, and to quickly perform the adjustment by securing the opportunity of executing the adjustment. SOLUTION: When executing adjustment accompanying by operation of an engine 22, auxiliary equipment 68 is driven at its maximum possible (S205), and also at braking, the torque Tb* of mechanical brakes 64a and 64b is increased, to suppress the regenerative control of a motor MG2 (S214 and S230); the engine 22 is driven at an operation point required for adjustment (S200). COPYRIGHT: (C)2005,JPO&NCIPI