摘要:
The comfort level gear shift motor vehicle with an automated gear-shifting transmission is determined by shift parameters, which are dependent on driving parameters and on a shift program mode. The shift program mode identified through a characteristic parameter, which can vary a range of parameter values corresponding to a range of shift program modes. The method has the steps of detecting current values the driving parameters, detecting a current value of the characteristic parameter, determining respective minimum and maximum values that each of said shift parameters can assume within the range of characteristic parameter values as a function of the current driving parameter values, calculating actual shift parameter values as intermediate values between said maximum and minimum values for each of said shift parameters based on said current value of the characteristic parameter, and performing the gear shift with the actual shift parameter values.
摘要:
A method of controlling an automated clutch of a vehicle includes the step of adapting a characteristic curve of the clutch through an electronic clutch management system. The adaptation is performed under at least one set of operating conditions that are represented by an operating point.
摘要:
In a method and apparatus for diagnosing a malfunction in a clutch actuator of a motor vehicle, the actual position of the clutch actuator is measured by a position sensor. Simultaneously, an estimated position of the clutch actuator is calculated by an emulation unit that emulates the function of the clutch actuator. Malfunctions of the clutch-actuator are diagnosed by comparing the actual, measured position to the estimated position.
摘要:
In a method and apparatus for diagnosing a malfunction in a clutch actuator of a motor vehicle, the actual position of the clutch actuator is measured by a position sensor. Simultaneously, an estimated position of the clutch actuator is calculated by an emulation unit that emulates the function of the clutch actuator. Malfunctions of the clutch-actuator are diagnosed by comparing the actual, measured position to the estimated position.
摘要:
A method for influencing a shift process connected with a change in transmission ratio when driving a motor vehicle that has a set of driven wheels subject to longitudinal and transverse forces, the method including detecting whether or not the vehicle is traveling around a curve and, if doing so when the shift process is in progress, influencing the shift process so as to decrease the longitudinal forces that act on the driven wheels as a result of the shift process. Also disclosed is an apparatus for performing the disclosed method including a detector for detecting whether or not the vehicle is traveling around a curve and a transmission ratio shifter responsive to the detector that, if the vehicle is traveling around a curve when the shift process is in progress, performs the shift process so as to decrease the longitudinal forces that act on the driven wheels as a result of the shift process.
摘要:
A method for controlling a drivetrain including an automatically shifted starting clutch and gear-shift clutch and a transmission, with a non self-locking clutch actuator, a gear actuator for engaging and disengaging transmission gears and a control unit which generates control commands for the clutch actuator and gear actuator and transmits such commands to the actuators such that, when the vehicle is at rest and a gear is engaged and if the clutch actuator fails, the clutch does not inadvertently engage. When a transmission gear is engaged, a control command is generated and sent for the clutch actuator to disengage the clutch. Thereafter, the vehicle speed is determined and if the speed is essentially zero and the clutch begins to engage, a control command is sent to the gear actuator to shift the transmission to its neutral position.
摘要:
A method for controlling an automotive hydraulic pump, wherein the hydraulic pump is activated to increase the pressure in a hydraulic accumulator associated therewith once the pressure falls below a predetermined lower pressure threshold, and the hydraulic pump is switched off once the pressure exceeds a predetermined upper pressure threshold value (P_O). The solution is to reduce fuel consumption of the vehicle, wherein the hydraulic pump is activated during different operating phases of the vehicle at different lower pressure values (P_U1, P_U2) in the event of a hydraulic pressure drop in the hydraulic accumulator of the hydraulic pump.
摘要:
A device for controlling a fluid-actuated, double-action operating cylinder (2) having two cylinder chambers (6, 8) separated from one another by a piston (4). Each cylinder chamber (6, 8) communicates with a respective valve (12, 14) for controlling the flow of fluid in and out of the cylinder chamber (6, 8) and a pressure sensor (40) for detecting the fluid supply pressure. A control unit (20) is connected to the switching valves (12, 14) and the pressure sensor (40). To determine the actual control force of the operating cylinder (2), the pressure sensor (40) is arranged between the cylinder chambers (6, 8) and the control unit (20). The output from the pressure sensor (40) can be processed in the control unit (20) and used for actuating a pressure regulation valve (22) arranged in the pressure line (32).
摘要:
A method and a device with which disturbing vibrations are diminished at least in the height of their amplitude. A control and regulating device (24) and suitable sensors (34, 36, 41) activate a device (7, 11, 15, 23, 29, 30) when previously established limiting values are exceeded with regard to procedure, with which components of the motor vehicle are influenced such that the disturbing vibrations are damped or compensated.
摘要:
In a method for controlling an automated clutch and/or an automated transmission in a motor vehicle with an electronic clutch management system, a target value for the clutch torque is determined as an output quantity of a start-up function dependent on suitable input quantities.