Bayerische Motoren Werke Aktiengesellschaft

Peter Wanner

Andreas Pfeiffer

Alois Freistadt

Hubert Schumacher

Emanuel Fuchs

In a method for structured storage of error entries of the users of a data bus in a motor vehicle, upon occurrence of an error, a function possibly influenced by the error and the members of an associated function-specific group of diagnostic-relevant users is determined, an error entry is prepared at a first member of the function-specific group, and a diagnostic pointer referring to the first member is stored at a second member of the function-specific group.

Method for structured storage of error entries

A method for preparing error entries of the user of a data bus in a motor vehicle is provided. When an error is detected, the detecting user is put into an error state and outputs an error message to a second user, a request to prepare an error entry is output by the second user to the detecting user after receiving such an error message as a function of at least one predefined condition, and an error entry is instigated by the detecting user in case of receiving such a request.

Method for preparing error entries

A method is provided for controlling a drive system and/or a wheel braking system of a vehicle, in which a total braking power to be exerted on the wheels of a motor vehicle is composed of a drive braking power and/or a wheel braking power. The instantaneously set drive braking power is frozen when, starting from a steady state operating mode, the gradient of the required total braking power exceeds a predetermined threshold.

Method for controlling a drive system and/or wheel braking system

A method for controlling a drive system and/or a wheel braking system, a total braking torque consisting of a drive braking torque and/or a wheel braking torque to be applied to the wheels of a motor vehicle is adjusted such that the desired wheel braking torque is reduced by an amount which can be compensated by a (preferably maximally) possible increase of the drive braking torque, when the wheel braking system is particularly loaded and when the vehicle velocity is approximately constant (steady-state) operating mode. However, the increase of the drive braking torque is limited to a predefined amount (preferably achievable in the fired coasting operation) when the wheel braking system is loaded less highly or the vehicle velocity changes (dynamic operating mode).

Method for controlling a drive system and/or a wheel brake system

A system for controlling longitudinal dynamics in motor vehicles by which, starting from an actual vehicle velocity, a new desired vehicle velocity is to be adjusted. A functional module is provided by which a desired wheel torque course is determined for reaching the desired vehicle velocity, the course at least in a main section being proportional to the reciprocal value of the vehicle velocity and which is outputted to potential regulating systems for the conversion of the desired wheel torque course.

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Vaterstetten, Germany

Peter Wanner