摘要:
A method for determining an optimal steering angle in understeer situations of a vehicle is described. To assist a driver in reliably stabilizing the vehicle during an understeer situation while driving, a model-based driving traction coefficient factor, a model-based kinematic factor, and a float angle are taken into account in the determination of a steering angle. A limited steering angle δv,lim at which a maximum lateral force is set, is determined by addition of the driving traction coefficient factor, the kinematic factor, and the float angle. A system suitable for implementation of the method is also described.
摘要:
The invention relates to an allocation method for a combined tire pressure monitoring system in motor vehicles, at least partly comprising wheels with pneumatic tires being equipped with pressure measuring modules, and each pressure measuring module records a tire inflation pressure or a value responsive to the tire inflation pressure and sends the latter to a receiving unit connected to an evaluating device by using a transmitting unit connected to the respective pressure measuring module together with an individual identification code (IDx) allocated to the respective pressure measuring module, and wherein signals about the rotational speed of each one wheel being sensed by means of wheel rotational speed sensors are transmitted to the evaluating device, and the installation positions y (VL: front left, VR: front right, HL: rear left, HR: rear right) of the wheels at the vehicle are known to the evaluating device, the wheels at the vehicle are known to the evaluating device, and the allocation method is performed by taking into consideration established probability values W_IDx_y, with the probability values W_IDx_y describing a frequency distribution which indicates how often pressure measuring modules with the identification codes IDx are detected as pertaining to the installation positions y. The invention further relates to a computer program product.
摘要:
What is disclosed is a directly controlled pressure control valve comprising a seat piston in a longitudinal bore of a valve housing, which is radially guided in its guidance portion through the intermediary of two circular, spaced-apart guide members in the longitudinal bore.
摘要:
An adjusting mechanism for a control member for influencing automotive vehicle engine torques. A spring-supported actuating member is articulated via pulleys at a mechanical linkage. The mechanical linkage transmits the movement of the actuating member onto a control member. The control member is influenced irrespective of the activation of the actuating member by another control variable effective, in particular, by the slip effect of driven vehicle wheels. A functionally optimized mechanical linkage is provided which has no reactive effect on the actuating member. This linkage comprises a first cable connecting link and a second cable connecting link, with the second mechanical connecting link cooperating with the control member via a pair of pulleys which are arranged on a lever and partially wrapped by the second cable connecting link.
摘要:
The invention relates to a three-way pressure reducing valve for reducing a primary pressure to a secondary pressure. Said three-way pressure reducing valve comprises means for monitoring the secondary pressure. First spool means of said pressure reducing valve and second spool means of said monitoring means are provided with first and second spring means, respectively. Further, first and second adjustment means, respectively, are provided said first and said second spool means being coaxially arranged.
摘要:
An exhaust gas retreatment system of an internal combustion engine includes a particle filter; and a sensor positioned, in a flow direction of the exhaust gas, downstream of the particle filter. The sensor is configured to measure the oxygen content and/or the NOx content in the exhaust gas downstream of the particle filter.
摘要:
Disclosed herein is a method and device for carrying out an avoidance maneuver of a motor vehicle. An object in the surroundings of the motor vehicle which is on a collision course is detected. A warning is output to the vehicle driver, to the effect that the motor vehicle is on a collision course, and the steering activity of the vehicle driver is detected. An externally actuable rear-wheel steering device is subsequently switched such that the front wheels and the rear wheels of the motor vehicle are controlled in the same direction. Also, the vehicle movement dynamics effects of the actuation of the externally actuable rear-wheel steering device in the same direction are compensated. A further warning is output to the vehicle driver in order to cause the vehicle driver to perform a greater steering activity necessary as a result of the actuation of the externally actuable rear-wheel steering device.
摘要:
An allocation method combines two tire pressure monitoring systems in motor vehicles being equipped with pressure measuring modules. Each pressure measuring module records a value responsive to the tire inflation pressure and sends the latter to a receiving unit connected to an evaluating device together with an individual identification code (IDx) allocated to the respective pressure measuring module. Signals about the rotational speed of each one wheel being sensed by wheel rotational speed sensors are transmitted to the evaluating device, and since the installation positions y of the wheels at the vehicle are known to the evaluating device, the wheels at the vehicle are known, and the allocation method is performed by taking into consideration established probability values W_IDx_y, with the probability values W_IDx_y describing a frequency distribution which indicates how often pressure measuring modules with the identification codes IDx are detected as pertaining to the installation positions y.
摘要:
Disclosed is a tire pressure monitoring device for a motor vehicle. A tire pressure monitoring system with direct measurement includes a transmission device for transmitting tire pressure values determined by pressure sensors, and a tire pressure monitoring system with indirect measurement that operates on the basis of wheel speed sensors. The tire pressure monitoring system with direct measurement includes a tire pressure measuring device for measuring a tire pressure value only on each wheel of a driven vehicle axle and on at most one wheel of a non-driven axle. The tire pressure monitoring system with indirect measurement includes wheel speed sensors on the non-driven vehicle axle.
摘要:
The present device relates to a method for automatically determining the installation positions of wheels in a motor vehicle. The motor vehicle has a direct measure tire pressure monitoring system includes individual wheel tire pressure measuring devices and transmitting devices for the transfer of TPMS data containing tire air pressure values and identification numbers of the individual wheels to a receiving and evaluating device installed in or on the vehicle. The motor vehicle also includes an indirect measuring tire pressure monitoring system determining DDS data containing air pressure changes and installation positions from the rotational behavior of the individual wheels. The method includes determining correlation coefficients from the TPMS data and the DDS data by using a correlation function.