281 results about "Automatic transmission system" patented technology

A closed loop shift control apparatus and method based on estimated torque in friction elements controls a torque transfer phase when shifting from a low gear configuration to a high gear configuration for an automatic transmission system. When pressure actuated friction elements are selectively engaged and released to establish torque flow paths in the transmission, estimates of torsional load exerted on the off-going friction element are used to predict the optimal off-going friction element release timing for achieving a consistent shift feel. The estimated torque is preferably calculated by using estimated torque signals generated as a function of speed measurements represented either the engine speed and turbine output speed or transmission output speed and wheel speed under dynamically changing conditions.

A method and system for controlling an automatic transmission is disclosed. The method and system include obtaining positioning data using a global positioning satellite (GPS) and monitoring the automatic transmission to obtain transmission data. The method and system also include learning whether performance of the automatic transmission can be improved utilizing the positioning data and the transmission data. Moreover, the method and system include adjusting a shift threshold for the positioning data for the automatic transmission if it is determined that the performance of the automatic transmission can be improved.

An SBW storage of an SBW controller stores a rotational angular position of an output shaft of an electric actuator. When the SBW controller is restarted due to instantaneous power interruption, the SBW controller maintains and uses the current angular position of the output shaft, which is stored in the SBW storage device, as a latest rotational angular position of the output shaft that is used to drive a shift range change mechanism upon satisfaction of the following conditions: the electric motor has not been driven before the instantaneous power interruption, and the current rotational angular position of the output shaft, which is stored in the SBW storage device, is not destroyed.

A transfer robot 1 for accommodating and transferring a transferred object has a transfer route storage section 23, a movement mechanism section 24, and a security level setting section 29. The transfer route storage section 23 stores a transfer route having been set up at least on the basis of transfer destination information for the transferred object. The movement mechanism section 24 causes the transfer robot to move toward a transfer destination on the basis of the transfer route. The security level setting section 29 switches a security level of the transfer robot 1 under movement on the basis of a zone level defined beforehand by each region in the transfer route, present position information of the transfer robot, and type information of the transferred object.

A closed loop shift control apparatus and method based on friction element load controls a torque transfer phase when shifting from a low gear configuration to a high gear configuration for an automatic transmission system. When pressure actuated friction elements are selectively engaged and released to establish torque flow paths in the transmission, measurements or estimates of torsional load exerted on the off-going friction element are used to predict the optimal off-going friction element release timing for achieving a consistent shift feel. The ideal timing to release the off-going friction element is uniquely defined when torque load exerted onto the off-going friction element becomes substantially zero. An on-coming clutch engagement process is controlled by a closed loop control based on measurements or estimates of on-coming clutch torque capacity for a constant shift feel under dynamically changing conditions.

An on-screen gear selector for an automatic transmission, which provides an interface between the driver and the automatic transmission. The gear selector provides the current selection by the driver to the transmission control unit. The virtual on-screen gear selector provides safety and security features, and is incorporated into the software of the gear selector, such as not allowing the transmission to change from park until the brake pedal is depressed, or not allowing the transmission to change from drive to a lower gear or reverse if the speed of the vehicle is above a predetermined value, thereby avoiding damage to the transmission. The use of the on-screen gear selector also provides the benefit of reducing space and weight of the vehicle, by having less mechanical parts.

An operating position select device has a select lever unit, a mode shift unit to shift operation modes of the automatic transmission, and an assist actuator controlled by a control unit. A first connecting member of the select lever and a second connecting member of the mode shift unit are relatively movable to a limit amount to each other and integrally movable beyond the limit amount with each other. The positions of the members are detected by an operating position sensor and an assist position sensor, respectively. The actuator is driven so that a difference between an operating position and an assist position may be reduced, but prohibited from driving when the difference is kept out of a permissible range for a predetermined period during rest of the actuator.

The invention discloses a method for achieving the automatic transmission (AT) low-speed mode on a vehicle equipped with an automated manual transmission (including automatic mechanical transmission (AMT) / double clutch transmission (DCT)). The method comprises the following steps: demarcating operation parameters of the vehicle in accordance with preset values; setting a plurality of functional modules on the vehicle; and enabling or disabling the corresponding functional modules in the vehicle according to the hardware configuration of the vehicle, wherein the enabled functional modules are used for manipulating and controlling an engine, a clutch and an transmission of the vehicle respectively by using the obtained driving status information of the vehicle, so as to achieve the low-speed mode on the vehicle. The method provided by the invention can greatly improve the city low-speed driving and parking control performances of the vehicle equipped with the automated manual transmission without increasing cost, thus effectively upgrading the market competitiveness of products. Furthermore, the method provided by the invention has broad market promotion and application prospects because the technical effects have been certified by real vehicles.

The invention relates to an electric vehicle automatic transmission system, wherein a vehicle controller (28) comprises a accelerator pedal signal acquisition device (29) and is connected with the circuits of an automatic transmission controller (25) and a drive motor controller (26) respectively; the drive motor controller is connected with the circuits of the automatic transmission controller (25) and a battery management device (27); the automatic transmission controller (25) contains a vehicle speed signal acquisition device (30), a shifting handle gear-D position signal acquisition device and a shifting fork reverse gear position signal acquisition device; preferredly, the automatic transmission controller also contains an adjustable speed motor, the circuit of the drive motor controller is connected with the adjustable speed motor; and the adjustable speed motor is used to connect with the input shaft of the drive motor. By using the system of the invention, the gear can be shifted according to the vehicle driving situation, thus expanding the working region of the drive motor and ensuring that the drive motor can always work in the ideal region,. Therefore, the dynamic property and economy of the electric vehicle can be increased, the cost performance of the electric vehicle can be greatly increased, the design is delicate, the structure is simple, and the system is convenient to use and suitable for large-scale popularization and application.

An electric actuator for an automatic transmission includes an adapter to transmit rotary motion between the adapter and the transmission. An electric motor has an output shaft operably connected the adapter by a gear set which includes a ring gear. A release mechanism includes a solenoid which selectively moves a lock member. In a first position, the lock member engages the ring gear to lock the ring gear so that the adapter is rotated by rotary motion of the output shaft and the adapter rotates to a predetermined zone about a desired gear position. In a second position, the lock member is out of engagement with the ring gear to permit rotation of the ring gear so that the adapter is rotated by internal forces of the transmission and the adapter automatically self-aligns to the exact desired gear position when the adapter is within the predetermined zone.

A pulse width modulated (PWM) valve-based hydraulic control system is disclosed. In one embodiment, a feedback control system includes a controller that receives a pressure command signal and a pressure feedback signal. The controller generates a duty cycle control signal that controls a PWM valve. The PWM valve provides a control pressure Pc to control a load, such as an actuator of an automatic transmission system. A pressure sensor measures the control pressure Pc and provides the pressure feedback signal. In another embodiment, a compensator provides compensation for linear and nonlinear effects in the pressure feedback signal, based at least in part, on other inputs, such as fluid temperature. In other embodiments, a plurality of controllers are provided, and a controller is selected by a switching logic processor, or by phase-in and phase-out filters, based on the pressure feedback signal and other inputs. A re-calibration process for the Pc versus duty cycle response of the PWM valve is also disclosed. The re-calibration method updates the feedback control system processes to maintain performance despite variations due to wear, temperature, and other factors.

The hydraulic pressure control mechanism for a change to a higher gear in a motor vehicle automatic transmission system with a series of hydraulic friction clutches has a first system (102) to determine whether the upward gear change command has been started while there is no pressure on the accelerator pedal, a second system (104) to determine whether a factor modifying an automatic transmission input torque has been generated, and a correction command system to correct the engagement pressure of the predetermined hydraulic friction clutch in conformity with the modification factor. The mechanism also has a computer (106) to calculate the gear selection value on the basis of the vehicle's actual speed, and a system to determine a differential value between the rotational speed of the transmission input shaft and synchronised speed.

A low leak pressure control actuator for, e.g., controlling pressure in an automatic transmission system, includes a poppet and a check ball slidably disposed within a housing. The poppet and check ball are movable between a de-energized configuration, plural partially energized configurations, and a fully energized configuration. In the de-energized configuration, the poppet and check ball prohibit all flow to and from the supply port and permit flow between the control port and the exhaust port. In the partially energized configurations, the poppet and check ball permit flow to and from all of the ports, and incremental changes in the internal displacement of the poppet produce incremental changes in a control pressure. In the fully energized configuration flow, the poppet and check ball prohibit all flow to the exhaust port and permit fluid flow between the supply port and the control port.

By providing an overhead buffer system between an automatic transport system and a load port assembly of a process tool, the efficiency of the respective load ports may be significantly enhanced, for instance, by reducing the idle time of empty carriers, thereby providing the potential for covering a wider range of operational scenarios compared to conventional strategies. For instance, for the same number of load ports, the overhead buffer system may provide a continuous operation, even if small lot sizes are used. The buffer system may comprise a dedicated transport mechanism for directly serving the load ports and respective buffer places, while respective transfer places may provide direct interaction with the automated transport system.

The invention discloses a full-automatic semiconductor wafer laser processing device and a processing method thereof. The full-automatic semiconductor wafer laser processing device is composed of a front support, a rear support, a laser processing system, a plurality of rotating platforms, an automatic transportation system, a plurality of automatic wafer fetching / placing systems corresponding to the rotating platforms and two wafer box lifting systems, wherein the laser processing system and the plurality of rotating platforms are all arranged on the rear support; the automatic transportation system, the plurality of automatic wafer fetching / placing systems and the two wafer box lifting systems are all arranged on the front support; and the two wafer box lifting systems are respectively arranged at the two ends of the automatic transportation system. The full-automatic semiconductor wafer laser processing device employs an automatic feed system, an automatic discharge system and an automatic processing system for processing, and operators only need to switch on and off the related parts, therefore, the device is safe and simple to operate.

Vehicle automatic transmission system having input shaft drive gears, output shaft driven gears meshing with the drive gears, a torque converter disposed between an engine crankshaft and the input shaft, synchromesh mechanisms for synchronously engaging the drive gears with the driven gears and a shift controller for automatically actuating the synchromesh mechanisms to obtain a required gear ratio. A lock-up clutch is incorporated in the torque converter for connecting a turbine shaft of the torque converter with the crankshaft. An electronically controlled throttle valve automatically operates to reduce crank shaft rotation speed when the gear is shifted, a bypass clutch transmits torque from the input shaft to the output shaft when the gear is shifted while the electronically controlled throttle valve reduces rotation speed of the crankshaft, and an input clutch selectively controls torque transmission from the crankshaft to the input shaft when the gear is shifted.

The invention discloses a virtual diagnosis method and system for an automatic transmission and aims at solving the problem that existing fault detection and diagnosis method cannot meet the requirement of high-efficiency and intelligent automatic transmission fault diagnosis. In the invention, function realization and failure conditions of each gearshift element are analyzed through power flow of each gear of the automatic transmission, and then the specific position of the faulted element of the automatic transmission is determined through a testing method. The diagnosis system mainly consists of a diagnosis platform and a testing analysis system, wherein the diagnosis platform comprises a PX1 controller, a CAN (Controller Area Network) bus interface card, a vehicle TCU (Transmission Control Unit) to be tested, a vehicle running state sensor and a roller bench for providing road running simulation; the testing analysis system comprises a power-flow-based diagnosis system platform constructed by LabVIEW2011. The design relates to the virtual diagnosis platform of the automatic transmission based on the power flow theory, which has the advantages of reasonable structure, simplicity and convenience in operation, reliable performance, high generality, low manufacturing cost and high accuracy, and can satisfy production and maintenance testing requirements.

The present invention relates to a control device for an automatic transmission and a method for implementing a failsafe function of the automatic transmission, which can properly protect the automatic transmission and ensure a certain degree of running performance even if the state of the shifting operation performed by the operator cannot be grasped. The control device has: an operating lever (1) for setting the shift range of the automatic transmission, a suppression switch (2) for outputting a range signal corresponding to the shift range as a control signal, and a vehicle speed sensor ( 3) At the same time, it also has an engine control device (10), which has a fault judging device (11) for judging the fault state of the suppression switch (2) based on the control signal, and suppresses the output of the engine according to the driving speed of the vehicle during the fault state. Torque engine torque suppression device (12).

A control apparatus for an automatic transmission system having a serial arrangement of a stepwise variable automatic transmission mechanism and a continuously variable automatic transmission mechanism, the control apparatus being disposed in the automatic transmission system and performing a shift control of the continuously variable automatic transmission mechanism in accordance with variation in transmission ratio of the stepwise variable automatic transmission mechanism, the control apparatus including a control section configured to execute a retardation processing upon shift control of one of the continuously variable transmission mechanism and the stepwise variable transmission mechanism which has a smaller response delay of an actual transmission ratio from a target transmission ratio than that of the other transmission mechanism.

The invention discloses a mechanical, intelligent, adaptive, two-speed and multi-cam automatic transmission which comprises a transmission shaft, a low speed transmission mechanism, a circular axial outer taper sleeve and a circular axial inner taper sleeve. The circular axial outer taper sleeve is sleeved outside the transmission shaft and is driven by a spiral cam pair. The slow speed transmission mechanism is provided with multi-end cams. The mechanical, intelligent, adaptive, two-speed and multi-cam automatic transmission has all advantages of the existing adaptive automatic cam transmission. By the slow speed transmission structure with the multi-end cams, flexibility of gear shifting can be guaranteed, jerk and jam in gear shifting are eliminated, driving comfort can be improved, energy is more reduced, consumption is more lowered, and power performance and economy of vehicles and driving safety and comfort can be improved greatly.

The invention provides an automatic transmission. Due to reasonable layout, the automatic transmission can be provided with six forward gears and one reverse gear by controlling two brakes and three clutches. Only the two brakes are used by directly fixing a third sun gear on a box body, and therefore, on one hand, the structure of the automatic transmission is more compact, and on the other hand, the impact of the brakes to the box body in a gear shifting process is reduced, and the loaded condition of the box body is improved. Relatively speaking, the amount of the brakes is reduced, the amount of the clutches is increased, and therefore, on one hand, the automatic transmission can be more compact by nesting layout, and on the other hand, the utilization ratio of the clutches can be increased, an idle transfer line is disconnected or shortened, furthermore, the drag torque of an idle planet row is reduced, the churning loss of a belt row is reduced, and the transmission efficiency is increased.

An automatic transmission system for a vehicle having a plurality of drive gears mounted on an input shaft, a plurality of driven gears mounted on an output shaft and meshing with the drive gears, a torque converter disposed between a crankshaft of an engine and the input shaft, synchromesh mechanisms for synchronously engaging the drive gears with the driven gears and a shift controller for automatically actuating the synchromesh mechanisms so as to obtain a required gear ratio, includes a lock-up clutch incorporated in the torque converter for connecting a turbine shaft of the torque converter with the crankshaft, an electronically controlled throttle valve for automatically operating to reduce a rotation speed of the crank shaft when the gear is shifted, a bypass clutch for transmitting torque from the input shaft to the output shaft when the gear is shifted while the electronically controlled throttle valve operates to reduce a rotation speed of the crankshaft, an input clutch provided between an output element of the torque converter and the input shaft for selectively controlling a torque transmission from the crankshaft to the input shaft when the gear is shifted, and a brake mechanism provided on an impeller shell of the torque converter for additionally reducing a rotational speed of the crankshaft while the electronically controlled throttle valve operates to reduce a rotational speed of the crankshaft.

The invention relates to an automatic tappet detecting and sorting machine. The automatic tappet detecting and sorting machine comprises an automatic detection host unit and a control cabinet. The automatic detection host unit comprises an automatic loading system, an automatic hardness detection system, an automatic crack measurement system, an automatic appearance measurement system, an automatic bottom thickness measurement system, an automatic transmission system, an automatic outer diameter measurement system, an automatic thickness T value measurement system, a laser marking system, an automatic discharging system, an automatic discharged material sorting system and an automatic oiling system, wherein an automatic conveying system is arranged between every two adjacent systems of the above systems from the automatic loading system to the automatic oiling system; and the systems are all mounted on a base in a modularization manner. The automatic tappet detecting and sorting machine is suitable for production sites, can repeatedly measure and accurately detect the diameter of a mechanical tappet at high efficiency of 2.8 seconds per tappet and by an accuracy of (-1.5mum to 1.5mum), can repeatedly measure the T value thickness of the mechanical tappet by an accuracy of (-0.6um to 0.6mum), can measure defects of non-polished T-stage, orifice, end face and the like, and can measure crack, hardness and the like.

The invention relates to a fully-digital intelligent restaurant system and a catering method. The fully-digital intelligent restaurant system mainly comprises a servo food supply system, an automatic dish distributing system, an automatic transmission system, a catering robot, a rack, a food taking channel and a lateral push rod. The fully-digital intelligent restaurant system is characterized in that the catering robot is installed on the rack; the automatic transmission system is arranged below the rack and passes through the rack; the servo food supply system is arranged below the catering robot; the food taking channel is arranged at the tail end of the automatic transmission system; and the lateral push rod is arranged at the tail end of a transmission channel. With the fully-digital intelligent restaurant system and the catering method adopted, fully unattended operation can be realized; catering efficiency can achieve 8 to 5 dishes per minute; environment can be safe and hygeian; and core requirements for pre-customization and remote operation can be satisfied.

A closed loop shift control apparatus and method based on estimated torque in friction elements controls a torque transfer phase when shifting from a low gear configuration to a high gear configuration for an automatic transmission system. When pressure actuated friction elements are selectively engaged and released to establish torque flow paths in the transmission, estimates of torsional load exerted on the off-going friction element are used to predict the optimal off-going friction element release timing for achieving a consistent shift feel. The estimated torque is preferably calculated by using estimated torque signals generated as a function of speed measurements represented either the engine speed and turbine output speed or transmission output speed and wheel speed under dynamically changing conditions.

The invention provides an intelligent assembly workshop control system. The intelligent assembly workshop control system comprises a control unit, a transmission unit, a product inspection unit, a code spraying unit, a check unit, an automatic weighing unit, a sorting unit and a case sealing unit. A high-efficiency production management APP, a product inspection management system, an automatic transmission system, the automatic code spraying system, the automatic weighing system and the automatic sorting system are utilized, in a product assembly process, the effective data can be timely acquired, product inspection work can be simplified, packing cases are made to pass through an automatic transmission line for automatic code spraying, automatic packing and counting, automatic sealing and automatic sorting are realized, work stations and artificial operation are reduced, loss caused by artificial error input can be effectively prevented, safety accidents caused by unreasonable place distribution can be avoided, manpower and hardware cost can be greatly saved, paper is saved, energy saving and environmental protection are better realized, the disordered production environments and the disordered order can be prevented, the assembly production process is made to be more systematic, and production efficiency is higher.