A vehicle control device includes a wheel speed acquisition unit which acquires wheel speeds of wheels of a vehicle based on detection results of wheel speed sensors, an acceleration acquisition unit which acquires an acceleration in a longitudinal direction of the vehicle based on a detection result of an acceleration sensor, a calculation unit which calculates a first vehicle speed based on the wheel speeds of the wheels, an estimation unit which calculates a second vehicle speed estimated based on the first vehicle speed and the detected acceleration, and a slip determination unit which determines whether the vehicle is in a slip state. The estimation unit calculates the second vehicle speed by executing a limit process on the detected acceleration, and switches a mode of the limit process when it is determined that the vehicle is in the slip state during acceleration or deceleration of the vehicle.

A method of rationalizing operation of a vehicle wheel speed sensor is provided. The method includes the steps of receiving an output signal from a longitudinal accelerometer, receiving an output signal from a wheel speed sensor, determining whether an acceleration event exists based on the output signal from the longitudinal accelerometer, evaluating the wheel speed sensor output signal during the acceleration event, and determining whether the wheel speed sensor signal exceeds a set threshold value during the acceleration event.

A vehicle control system with which different vehicle functions, such as a driving dynamics function and/or a component protection function, can be controlled, in which vehicle control system, in the case of onroad driving, an rpm-based vehicle speed determined by a wheel speed sensor forms a reference variable, on the basis of which the vehicle control system determines driving parameters and/or controls the vehicle function. The vehicle control system is assigned an evaluation unit which, in the presence of both offroad driving operation and a tire change signal, determines a GPS-based vehicle speed as a reference variable, on the basis of which the vehicle control system determines the driving operation parameters, such as an offroad tire diameter, and/or controls the vehicle functions.

The proposed invention relates to methods for controlling energy consumption by a motor vehicle and can be used in transportation industry. The technical problem to be solved by the claimed invention is to provide a method, a device and a system that do not possess the drawbacks of the prior art and thus make it possible to generate an accurate energy-efficient track for a motor vehicle that allows to reduce energy consumption by the motor vehicle on the specific portion of the route. The objective of the claimed invention is to overcome the drawbacks of the prior art and thus to reduce energy consumption by the motor vehicle on the specific portion of the route.

A method is provided for evaluating wheel sensor signals of a wheel speed sensor where the wheel speed sensor supplies signals that are transmitted using two different protocols. Each protocol comprises a start pulse and a number of data pulses. A first processor unit receives the signals from the sensor and uses the start pulse to determine whether they were transmitted using the first protocol or the second protocol. Depending on the result, the first processor unit signals without a time delay whether a start pulse has been received via an ASO interface of a second processor unit, wherein a variable pulse width is used to indicate whether the start pulse belongs to a data packet that is transmitted with the first protocol or with the second protocol. The second processor provides each incoming ASO signal with a time stamp, so that the speed can be determined.

Disclosed herein are an autonomous vehicle and a method of controlling the same. The autonomous vehicle controller may determine a lane on which a first vehicle is currently travelling, determine a second vehicle that is ahead of the first vehicle, determine, based on receiving from a steering wheel an indication of changing a travelling direction of the first vehicle and while the first vehicle is in an autonomous driving mode, whether the first vehicle is travelling along a predetermined route at an entry point of a ramp, and control, based on determining whether the first vehicle is travelling along the predetermined route at the entry point of the ramp, a route and a speed of the first vehicle.

Systems and methods for determining the location of a vehicle are disclosed. In one embodiment, a method for localizing a vehicle includes driving over a first road segment, identifying by a first localization system a set of candidate road segments, obtaining vertical motion data while driving over the first road segment, comparing the obtained vertical motion data to reference vertical motion data associated with at least one candidate road segment, and identifying, based on the comparison, a location of the vehicle. The use of such localization methods and systems in coordination with various advanced vehicle systems such as, for example, active suspension systems or autonomous driving features, is contemplated.

A device and a method for steering a vehicle are provided. The method includes following steps: obtaining a point cloud data of a vehicle through a lidar, obtaining an RGB image of the vehicle through a camera, and obtaining a current speed of the vehicle through a wheel speed sensor; using the current speed and local path way points associated with the point cloud data to obtain a target angle; using the current speed and a central lane distance error associated with the RGB image to obtain a compensator angle; and using the target angle and the compensator angle to obtain a steering command, and steering the vehicle to drive in a lane according to the steering command.

A road surface gradient estimation device includes an acquisition unit that acquires each of detection results of an acceleration detection unit that detects an acceleration in a front-rear direction of a vehicle, and a wheel speed detection unit, and acquires information regarding power for driving the vehicle, a derivation unit that derives a gradient of a road surface on which the vehicle is traveling as a first road surface gradient based on the acquired acceleration and wheel speed, and a correction unit that corrects the derived first road surface gradient based on the information regarding the power for driving the vehicle to derive a second road surface gradient.