Patent application number | Description | Published |
20120132021 | MANUAL TRANSMISSION FOR VEHICLES - A manual transmission for vehicles includes an input shaft on which a first synchronizer mechanism including first and second input gears, third, fourth, fifth, and sixth input gears are disposed, an output shaft on which a first output gear, first and second speed gears engaged respectively to the first and second input gears, a second synchronizer mechanism including third and fourth speed gears engaged respectively to the third and fourth input gears, and a third synchronizer mechanism including fifth and sixth speed gears engaged respectively to the fifth and sixth input gears, a reverse speed output shaft on which a second output gear and a fourth synchronizer mechanism including a reverse speed gear engaged to the third speed gear, and a driven gear engaged to the first and second output gears so as to receive torque, and delivering the torque to a differential. | 05-31-2012 |
20120137805 | Manual Transmission for Vehicles - A manual transmission for vehicles minimizes rotational inertia and improves rattle as a consequence of preventing unnecessary idling of a first speed gear and a reverse speed gear by maintaining a first input gear to be a free gear state at all shift-speeds except a first forward speed and a reverse speed. | 06-07-2012 |
20120292154 | APPARATUS FOR REDUCING TRANSMISSION SHOCK IN AUTOMATIC TRANSMISSION - An apparatus for reducing transmission shock of an automatic transmission may include a piston operated by a control pressure, a clutch performing a clutching operation by an operation of the piston, and a cushion spring arranged between the piston and the clutch which varies by stages in stiffness of the spring with an operating position of the piston. The cushion spring may be formed with one or more sets of a plurality of curved-surface springs bent in an operating direction of the clutch and connected with each other, each set of the plurality of curved-surface springs having a different bending height. | 11-22-2012 |
20130037001 | CONTROL METHOD OF DIESEL VEHICLE - An idle throttle valve control method of a diesel vehicle, may include a first step of determining whether an idle entry condition of the vehicle may be satisfied, a second step of controlling a throttle valve based on an air amount map and controlling an exhaust gas recirculation (EGR) valve based on an EGR map, when the first step may be satisfied, a third step of determining whether an idle release condition may be satisfied during the second step, and a fourth step of determining whether an EGR return condition may be satisfied, when the idle release condition may be satisfied in the third step. | 02-14-2013 |
20130109528 | INPUT SHAFT DAMPER OF TRANSMISSION | 05-02-2013 |
20130118300 | SHAFT DAMPER OF TRANSMISSION - A shaft damper of a transmission is provided to improve an NVH characteristic such as rattle noise of a transmission by effectively reducing target resonance as a problem in whole rpm ranges by adding a structure to minimize one resonance and additionally reduce the resonance with respect the other resonance between two resonances while converting the target resonance as the problem into two divided resonances by mounting a structure which applies inertia to an input shaft or an output shaft, a counter shaft, or a PTO shaft of the transmission. | 05-16-2013 |
20130118849 | INERTIA INCREMENTAL APPARATUS FOR FLYWHEEL OF ENGINE - An inertia incremental apparatus for a flywheel of an engine is provided to improve NVH performance of a vehicle driving system as well as rotary vibration generated from a crankshaft of the engine by remarkably increasing inertial force of the flywheel of the engine while occupying a relatively small volume and a relatively small weight to assure quiet and safe operability and ride comfort of a vehicle. | 05-16-2013 |
20130118855 | METHOD FOR CONTROLLING CLUTCH OF AUTOMATIC TRANSMISSION FOR IMPROVEMENT OF FUEL EFFICIENCY - A method for controlling a clutch of an automatic transmission for improvement of fuel efficiency may include determining whether external driving conditions of a vehicle meets coasting conditions, determining a clutch slip control time and an amount of clutch slip torque according to internal driving conditions of the vehicle, performing slip control on a clutch that works at each step of the automatic transmission using the determined clutch slip control time and torque, wherein an engine brake torque transmitted to a final output shaft of the automatic transmission may be reduced. | 05-16-2013 |
20130150213 | CONTROL METHOD FOR SHIFTING IN MANUAL TRANSMISSION VEHICLE - A control method for shifting in a manual transmission vehicle may include sensing tip-out while the vehicle travels; operating a tip-out torque filter when the tip-out is sensed; determining whether a switch of a clutch of the vehicle is turned on; stopping fuel injection by stopping the tip-out torque filter when the switch of the clutch is turned on, and reducing rotation speed of an engine by controlling a throttle flap of the vehicle. | 06-13-2013 |
20130151090 | VEHICLE SPEED CONTROL SYSTEM AND CONTROL METHOD FOR THE SAME - A vehicle speed control system and method controls vehicle speed when a constant speed travel system for a vehicle operates. The system includes a detector that detects travel speed of the vehicle, a throttle valve opening/closing unit that opens/closes a throttle valve in the vehicle, a brake control unit that controls the operation of a brake in the vehicle, a transmission control unit that changes shift stages of a transmission in the vehicle, and a control unit that extracts the difference between a travel speed and a desired speed and controls the throttle valve opening/closing unit, the brake control unit, and the transmission control unit to gradually operate in accordance with the extracted speed difference value, when the travel speed received from the speed detector is larger than the desired speed set in the constant speed travel system. | 06-13-2013 |
20130151099 | METHOD FOR CONTROLLING A DAMPER CLUTCH - A method for controlling a damper clutch may include determining whether the damper clutch is in a slip or lock-up state in a driving state of a vehicle, determining whether a condition of the vehicle is within a predetermined resonant range, determining whether a torque of the vehicle is within a predetermined resonant torque range, detecting a subharmonic vibration when the damper clutch is in the slip or lock-up state, the condition of the vehicle is within the predetermined resonant range, and the torque of the vehicle is within the predetermined resonant torque range, and controlling the damper clutch to slip or be open when the subharmonic vibration is larger than a predetermined value. | 06-13-2013 |
20130151108 | METHOD FOR CONTROLLING TORQUE OF ENGINE - A method for controlling an engine torque, may include determining an engagement degree of a clutch in a transmission while a vehicle travels, determining whether a state of the vehicle corresponds to a resonance region where abnormal vibration may be generated by a rigidity change according to the engagement degree, determining whether torque in the vehicle corresponds to a resonance torque region where abnormal vibration may be generated by a rigidity change according to the engagement degree, checking a sub-harmonic value when the engagement degree may be a predetermined degree or more and the vehicle may be in the resonance region and the resonance torque region, and controlling the engine torque to avoid a rigidity change torque when the checked sub-harmonic value may be over a first predetermined value. | 06-13-2013 |
20130260953 | FLYWHEEL OF ENGINE - A flywheel apparatus of an engine may include a primary wheel that receives a rotational force from the engine and has an integral ring gear, a secondary wheel that has a sun gear disposed coaxially with the ring gear, a carrier to which each rotary shaft of a plurality of planetary gears may be connected, the planetary gears being engaged between the integral ring gear and the sun gear, and a damping member elastically engaging between the carrier and the secondary wheel and providing an elastic force to the carrier during relative rotation between the carrier and the secondary wheel. | 10-03-2013 |
20130269342 | TURBOCHARGER OF ENGINE - A turbocharger apparatus of an engine may include a turbine installed to generate a rotating force from an exhaust gas flow of the engine, a compressor selectively coupled to the turbine to be rotated for compressing air which is to be supplied into an engine combustion chamber of the engine, a shaft installed to transfer the rotating force of the turbine to the compressor, a clutch installed to the shaft to control the transfer of the rotating force between the turbine and the compressor, a planetary gear unit connected to the compressor, and a motor generator mounted onto the shaft and coupled to the planetary gear unit to receive the rotating force of the compressor through the planetary gear set. | 10-17-2013 |
20140041478 | DAMPER FOR INPUT SHAFT OF TRANSMISSION - A damper apparatus for an input shaft of a transmission, may include a flywheel having a reception space in which a inertial body may be provided so as to be rotatable relative to the flywheel, the input shaft extending into the reception space of the flywheel, and an inertial body assembly slidably coupled to the input shaft so as to provide rotational inertial force to the input shaft, the inertial body assembly being disposed in the reception space. | 02-13-2014 |
20140045646 | APPARATUS FOR DAMPING FLYWHEEL - An apparatus for damping a flywheel includes a drive plate integrally connected to a crankshaft A flywheel is connected to receive a rotating force from the drive plate through planetary gearing, and is mounted to rotate relative to the crankshaft. A rigidity imparting means is disposed on a path along which a rotating force is transferred between the drive plate and the flywheel. A mass body is provided on the flywheel, and is configured to perform relative rotation in a direction that offsets a torsional vibration of an engine transmitted to the flywheel. | 02-13-2014 |
20140083242 | Damping Apparatus for Flywheel - A damping apparatus of a flywheel includes a pair of rotors and a weight. The rotors are provided in the flywheel and rotate along with the flywheel. The rotors receive torsional vibration from an engine through the flywheel, and are configured such that they face each other and are restricted from rotating relative to each other. The weight is provided between the rotors. The weight rotates relative to the rotors in a direction in which the torsional vibration transmitted to the rotors is offset. | 03-27-2014 |
20140100759 | FUEL CONTROL SYSTEM AND FUEL CONTROL METHOD OF A GASOLINE DIRECT INJECTION ENGINE - A fuel control system and fuel control method of gasoline direct injection engine can improve noise vibration harshness (NVH) by preventing fuel from flowing backward into a low pressure pump by determining whether the ignition of the engine is turned off and maintaining the operation of an inlet valve of a high pressure pump for a predetermined time when the ignition of the engine is determined to be turned off. | 04-10-2014 |
20140121943 | CONTROL SYSTEM AND CONTROL METHOD OF GASOLINE DIRECT INJECTION ENGINE - A control system and a control method of a gasoline direct injection engine may include determining whether the engine is stopped and can improve NVH of a vehicle by keeping the fuel high-pressure pump input valve of the high-pressure pump operating for a predetermined time and preventing fuel from flowing backward to the low-pressure pump. | 05-01-2014 |
20140138207 | CLUTCH ACTUATOR FOR VEHICLES - A clutch actuator for vehicles may include a lever lift engaged to a power generation unit so that the lever lift may be linearly moved by power generated from the power generation unit, wherein the lever lift includes an inclined surface provided on each of first and second ends thereof, and a lever provided between the lever lift and an actuating member that operates a diaphragm spring, wherein the lever includes lift protrusions formed at positions corresponding to respective inclined surfaces and contacting thereto, and wherein the lever may be configured such that when the lever lift linearly moves in a predetermined direction, the lift protrusions move along corresponding inclined surfaces, so that opposite ends of the lever pivotally rotate, whereby one of the opposite ends of the lever moves towards the actuating member. | 05-22-2014 |
20140148294 | AUTOMATED MANUAL TRANSMISSION - An automated manual transmission may include first and second auxiliary gears, wherein the first auxiliary gear is rotatably provided on an INPUT shaft to be rotated relatively with respect to the INPUT shaft and wherein the second auxiliary gear is provided on an OUTPUT shaft to be meshed with the first auxiliary gear, a planetary gear unit provided with three or more rotational elements wherein one rotational element thereof receives power from an engine to be rotated constantly and another rotational element thereof is coupled to the first auxiliary gear provided on the INPUT shaft to be rotated, and a motor generator that is coupled to still another rotational element of the rotational elements and provides a rotational power to the still another rotational element in shifting gears so that the rotational power is transmitted to the OUTPUT shaft through the first and second auxiliary gears. | 05-29-2014 |
20140157945 | DUAL MASS FLYWHEEL - It is possible to prevent mounting performance from being deteriorated due to an increase in length of a transmission by mounting an inertia body not on the input shaft of the transmission and can effectively suppress rattling of the transmission by effectively reducing rotational vibration of the input shaft of the transmission, using 2-cylinder and 3-cylinder engines, down-speeding, or Cylinder Deactivation (CDA). | 06-12-2014 |
20140157947 | APPARATUS FOR DAMPING OF FLYWHEEL - An apparatus for damping of a flywheel, which is configured so that a second mass may rotate in a direction for offsetting torsional vibration of an engine transmitted to a first mass through a damping spring. The apparatus includes: guides disposed between damping springs and guiding the damping springs extending/contracting in a rotational direction by a damping operation; and a third mass arranged coaxially with the second mass, with one end connected to the guide, and relatively rotating in a direction for offsetting torsional vibration of the engine transmitted to the second mass. | 06-12-2014 |
20140331800 | MANUAL TRANSMISSION FOR VEHICLES - A manual transmission for vehicles minimizes rotational inertia and improves rattle as a consequence of preventing unnecessary idling of a first speed gear and a reverse speed gear by maintaining a first input gear to be a free gear state at all shift-speeds except a first forward speed and a reverse speed. | 11-13-2014 |
20150087455 | ALTERNATOR PULLEY, AND MOUNTING STRUCTURE OF ALTERNATOR PULLEY AND ALTERNATOR FOR VEHICLE - An alternator pulley, a mounting structure of an alternator pulley, and an alternator for a vehicle are configured to reduce vibration by mounting an adaptor which includes a pendulum on the alternator pulley, by reacting a pendulum vibration with a belt vibration which have inverse phases to each other, and by completely press-fitting the adaptor to the alternator pulley without backlash. The alternator pulley, mounting structure and alternator may include a pulley body configured to be coupled with an alternator shaft and receiving power by a belt and an adaptor coupled with the pulley body and absorbs vibration caused by power delivery, wherein the adaptor may further include at least one pendulum for absorbing vibration caused by the power delivery. | 03-26-2015 |