A control system and method for controlling a multiple gear ratio automatic transmission in a powertrain for an automatic transmission having pressure activated fiction torque elements to effect gear ratio upshifts. The friction torque elements are synchronously engaged and released during a torque phase of an upshift event as torque from a torque source is increased while allowing the off-going friction elements to slip, followed by an inertia phase during which torque from a torque source is modulated. A perceptible transmission output torque reduction during an upshift is avoided. Measured torque values are used during a torque phase of the upshift to correct an estimated oncoming friction element target torque so that transient torque disturbances at an oncoming clutch are avoided and torque transients at the output shaft are reduced.

A hydrostatic transmission pressure monitoring system includes a hydrostatic transmission and a pressure sensor data source. The hydrostatic transmission includes, in turn, a transmission casing, a pivoting yoke assembly rotatably mounted in the transmission casing, a hydrostatic pump-motor arrangement containing a hydraulic pump-motor circuit at least partially formed in the pivoting yoke assembly, and a pressure scaling device fluidly coupled to the hydraulic pump-motor circuit. The pressure scaling device is configured to generate a pressure-scaled output signal substantially proportional to a peak circuit pressure within the hydraulic pump-motor circuit. The pressure sensor data source is fluidly coupled to the pressure scaling device and is configured to generate pressure sensor data indicative of the pressure-scaled output signal.

A control apparatus is applicable to a drive system that measures a user's manipulated parameter, and drives a driving unit constituting a mobility device in accordance with a driving quantity determined based on the user's manipulated parameter. The user's manipulated parameter includes at least one of a user's manipulated variable and a user's manipulated setting. In the control apparatus, a storage unit stores at least one mobility parameter that enables the driving quantity to be determined based on the user's manipulated parameter. A parameter acquiring unit acquires parameter information inputted by a user. The parameter information includes at least one of (i) a user's selected at least one mobility parameter and (ii) information related to the user's selected at least one mobility parameter. In the control apparatus, an updating unit updates, based on the parameter information, the at least one mobility parameter stored in the storage unit.

A method for controlling a wheel slip of a vehicle is provided. The method includes estimating equivalent inertia information of a driving system based on operation information of the driving system during operation of a vehicle and subsequently, calculating the amount of calibration for calibrating a torque command of a driving device for driving the vehicle from the estimated equivalent inertia information of the driving system. The torque command of the driving device is calibrated using the calculated amount of calibration and subsequently the torque applied to a driving wheel is adjusted according to the calibrated torque command.

Controlling maximum appliable positive and negative torque for a vehicle is provided. Vehicle data indictive of a driver torque request is received. Maximum appliable positive and negative torques for the vehicle are estimated. Responsive to the driver torque request being positive, the driver torque request is limited to the maximum appliable positive torque. Responsive to the driver torque request being negative, the driver torque request is limited to the maximum appliable negative torque.

A calibration table usable in operating an autonomous driving vehicle (ADV) is updated. The operations comprise: determining a first torque value at a first time instant prior to executing a control command; determining a control command based on a speed of the ADV, a desired acceleration, and an associated entry in the calibration table; executing the control command; determining a second torque value at a second time instant subsequent to executing the control command; determining a torque error value as a difference between the first and second torque values; updating the associated entry in the calibration table based at least in part on the torque error value; and generating driving signals based at least in part on the updated calibration table to control operations of the ADV.

The invention relates to a method for the position determination of an object (6, 6a . . . 6d), which is conveyed on a conveying device (1a . . . 1c). In this process, a deviation (ΔP) between a position (P.sub.sig) of the object (6, 6a . . . 6d), which is calculated with the aid of rotation signals from the drives (M) for conveyor elements (2, 2.sub.M, 2.sub.L) of the conveying device (1a . . . 1c), and a position (P.sub.1 . . . P.sub.5) of a detection area (E.sub.1,E.sub.2) of a sensor (L.sub.1 . . . L.sub.5) fixedly installed on the conveying device (6, 6a . . . 6d) is determined and used for calculating a corrected position (P.sub.korr) of the object (6, 6a . . . 6d) during a movement of the object (6, 6a . . . 6d) away from this detection area (E.sub.1,E.sub.2). Furthermore, a conveying device (1a . . . 1c) for performing the presented method is indicated.

A hydrostatic transmission pressure monitoring system includes a hydrostatic transmission and a pressure sensor data source. The hydrostatic transmission includes, in turn, a transmission casing, a pivoting yoke assembly rotatably mounted in the transmission casing, a hydrostatic pump-motor arrangement containing a hydraulic pump-motor circuit at least partially formed in the pivoting yoke assembly, and a pressure scaling device fluidly coupled to the hydraulic pump-motor circuit. The pressure scaling device is configured to generate a pressure-scaled output signal substantially proportional to a peak circuit pressure within the hydraulic pump-motor circuit. The pressure sensor data source is fluidly coupled to the pressure scaling device and is configured to generate pressure sensor data indicative of the pressure-scaled output signal.

A control system for hybrid vehicles for reducing a shock caused by a change in an output torque of a transmission during a shifting operation of a transmission. In the hybrid vehicle, an engine and a first motor are connected to an input side of an automatic transmission, and a second motor is connected to an output side of the automatic transmission. A controller calculates a change in an output torque of the transmission when establishing a predetermined gear stage, based on a torque capacity of an engagement device to be engaged and an input torque to the transmission, and select one of the first motor and the second motor that requires less power to reduce the change in the output torque of the automatic transmission.

A vehicle includes a transmission, a powerplant, an inertial measurement unit, and a controller. The transmission has an input shaft and an output shaft. The powerplant is configured to generate and deliver torque to the input shaft. The inertial measurement unit is configured to measure inertial forces exerted onto the vehicle. The controller is programmed to, in response to a demanded torque at the output shaft and a non-transient condition of the vehicle, control the torque at the output shaft based on a torque at the input shaft and a gear ratio of the step-ratio transmission. The controller is further programmed to, in response to the demanded torque at the output shaft and a transient condition of the vehicle, control the torque at the output shaft based on the inertial forces and a vehicle velocity.