Ford Global Technolgoies, LLC

Peter Schmitz

Uwe Gussen

Mark Eifert

Rainer Busch

Mohsen Lakehal-Ayat

Engbert Spijker

Bjoern Mohrmann

Armin Warm

Manuel Bojahr

Achim Seibertz

Julian Requejo

Björn Mohrmann

An on-board electrical system for motor vehicles has a battery, a generator and at least one normal consumer that is connected to the battery in a switchable manner. A DC voltage/DC voltage converter is connected on its primary side to the battery and on its secondary side to a high-load resistor. A switch connects the high-load consumer to a storage device in a first switching position, and to the primary side in a second switching position. A controller controls and operates the switch between the first and the second switching position. A device that detects the actual electrical power of the high-load consumer is associated with the high-load consumer, and is connected at the output end to the controller.

On-board vehicle electrical system having a converter and high-load consumer

Methods and systems are provided for an on-board electrical system for a motor vehicle that includes one or more power sources and an electrical subsystem with a switch that can be actuated to selectively bypass a DC/DC converter and a storage device, responsive to electrical parameters such as the power demand of high-power consumers. In one example, when high-power consumers have low and constant power requirements, the switch may be positioned to bridge the DC/DC converter and storage device. Further, the method includes selectively controlling the power source in order to meet peak power demands with the power source operating at the greatest efficiency for the given operating conditions.

On-board electrical system for motor vehicles comprising a converter and a high-load consumer

A system and method for charging a vehicle having a first battery, such as a high-voltage traction battery, and a second battery, such as a low-voltage battery, include controlling a DC converter or relay to effectively decouple the second battery from the converter when the vehicle is connected to an external power source to reduce or prevent damage to the second battery from extended or prolonged charging. The second battery may be effectively decoupled from the converter by controlling the relay or converter voltage based on state of charge of the second battery so that substantially zero current flows to and from the second battery relative to the converter and any vehicle low voltage consumers/accessories.

Electric charging method for a vehicle and electric vehicle charging device

The invention relates to the input of speed limiting values into a speed limiter in a vehicle. The speed limiting value which is to be complied with is set by activating a key ( ) on an input device ( ) one or more times. That speed limiting value of the predefined speed limiting values which is the next highest in relation to the current speed of the vehicle is selected. If the current speed of the vehicle is higher than the highest predefined speed limiting value, the speed limiter is deactivated or the speed of the vehicle plus a speed difference is accepted as the speed limiting value. In exceptional situations, the speed limiter can be temporarily suspended, it being possible for an exceptional situation to be, in particular, the upward transgression of the predefined speed limiting value or a rapid depression of the gas pedal.

Method and device for inputting speed limiting values for a speed limiter of a vehicle

The invention relates to a speed limiter in a vehicle. The speed limiting value which is to be complied with is set by activating a key ( ) on an input device ( ) one or more times. That speed limiting value of the predefined speed limiting values which is the next highest in relation to the current speed of the vehicle is selected. If the current speed of the vehicle is higher than the highest predefined speed limiting value, the speed of the vehicle plus a speed difference is accepted as the speed limiting value. In exceptional situations, the speed limiter can be temporarily suspended, it being possible for an exceptional situation to be, in particular, the upward transgression of the predefined speed limiting value or a (rapid) depression of the gas pedal.

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Aachen, Germany

Peter Schmitz