摘要:
A method and a device for setting a gear ratio of the transmission while a distance and/or vehicle-speed control system (ACC system) is activated. A setpoint variable, as a function of which at least the driving motor of the vehicle is controlled, is input. The setpoint variable or a value derived from this setpoint variable is limited in response to the existence of a first operating state, and the gear ratio is then set as a function of the limited variable, or as a function of the limited value. The gear ratio is set as a function of the setpoint variable, or as a function of the value, in response to the existence of a second operating state. The method and device prevent unnecessary and uncomfortable occurrences of downshifting during ACC operation, without losing the option of accelerating sharply.
摘要:
In a method and a device for triggering a request for taking control (RTC), a driver of a vehicle having adaptive cruise control is signaled that the adaptive cruise control system may not be capable of controlling a driving situation, and that the driver may have to intervene, the signaling of the driver being generated in accordance with at least two vehicle variables, whereby the probability of a false alarm by the system is reduced, and the triggering of the RTC is adapted to the instantaneous vehicle speed.
摘要:
A method for regulating the speed of a vehicle, in which at least one vehicle traveling ahead is detected by a radar sensor within a radar detection range. An acceleration limitation is carried out in the vehicle to be regulated, when a vehicle moves, at lower speed than the vehicle to be regulated, in a neighboring lane provided for vehicles traveling at higher speed. The magnitude of the acceleration limitation is a function of the distance of the vehicle in the neighboring lane from the vehicle which is to be regulated, and of its speed with respect to the vehicle which is to be regulated.
摘要:
In a method and apparatus for controlling the distance of a vehicle to a vehicle traveling ahead, in which the distance and the relative velocity of the vehicle traveling ahead are measured and the distance, in a distance control mode, is controlled by accelerating or decelerating the vehicle to a preestablished setpoint distance, wherein the deceleration permitted by the distance control process is limited and, in situations in which the setpoint distance cannot be maintained at this limited deceleration, the transition is made from the distance control process to a process limiting the distance to a minimum distance which is smaller than the setpoint distance, and the vehicle, after reaching the minimum distance, is further decelerated, so that the distance once again increases to the setpoint distance.
摘要:
A method and an arrangement for ensuring the standstill of a vehicle, especially in combination with a control of the speed of the vehicle, are suggested, wherein a braking force is built up to realize a parking brake when standstill of the vehicle is detected and/or a transmission is switched into the park position. The brake force or the transmission position is also maintained when the supply voltage for the electrical systems of the vehicle is switched off.
摘要:
A method and a device are for setting the longitudinal speed of a vehicle to a setpoint speed, in particular on the basis of a regulation, having controllable brakes. In operation of a cruise control system, the cruise control may be activated when the instantaneous driving speed is significantly higher than a stored setpoint speed. In this situation, there may be unwanted braking responses by the regulator, which may endanger the driver and the following road users. In such a situation, the method prevents a breaking measure from being implemented and ensures that the vehicle will coast, being braked only by the road resistance and the drag on the engine, until reaching the set speed. The driving response of the cruise control system approximates that of a human driver, so the responses of the automatic cruise control seem more intelligible for the driver.
摘要:
A method for terminating a braking intervention of an adaptive cruise control system of a motor vehicle. The braking intervention is terminated in accordance with a predefined algorithm in response to the driver overriding of the adaptive cruise control system. In this context, the algorithm is formed in such a manner that a jerk-free transition from braking to acceleration of the motor vehicle is ensured, thus increasing the ride comfort. The transition from braking to acceleration preferably takes place in accordance with a linear function. Provision can also be made for stepwise functions. To prevent the braking operation from being terminated prematurely by an inadvertent actuation of the accelerator, provision is made for a threshold value to be adjusted for the accelerator for a desire of the driver to accelerate. This threshold value is dependent on the deceleration during braking. The higher the braking deceleration is, the more heavily the driver must operate the accelerator to initiate the acceleration process. In the case of a low deceleration, the threshold value is lower, so that it suffices to step more lightly on the accelerator to bring about an acceleration of the motor vehicle.
摘要:
A method for assisting, in a passing maneuver, for motor vehicles having a distance and speed control device, in which vehicles in the passing lane are taken into account and, if the traffic situation detected by sensors or an intervention by the driver suggests a desire to pass, control is temporarily carried out to an increased passing speed. The distances to the vehicles located in the passing lane are measured and the passing speed is calculated as a function of the distances of the vehicle to be passed and at least the vehicle directly preceding in the passing lane.
摘要:
A method for the adaptive control of distance and/or driving speed of a motor vehicle. A control device is able to control an engine of the motor vehicle in at least a first operating mode and a brake of the motor vehicle in a second operating mode, a transition being made from the first operating mode to the second operating mode and vice versa as a function of determined quantities.
摘要:
A device and a method for notifying the driver of a motor vehicle, equipped with an adaptive distance and speed controller, by activating a takeover prompt, informing the driver that the vehicle is coming critically close to a target object. The takeover prompt is activated and deactivated as a function of a fixed minimum distance between the distance- and speed-controlled vehicle and the target object and/or a relative speed-dependent minimum distance between the distance- and speed-controlled vehicle and a target object and/or a maximum vehicle deceleration producible by the distance and speed controller.