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AssigneeDaimlerChrysler AG
InventorsRoland Bischoff, Helmut Daudel, Guenter Fleckenstein, Hermann Hiereth
Estimating the term…
An exhaust gas turbocharger with a variable turbine geometry can be adjusted in the fired engine operation by an automatic turbine controller to a definable desired supercharging pressure in the intake port. In the braking operation, the turbocharger can be adjusted by an engine braking system with an automatic braking controller as a function of operating parameters of the internal-combustion engine into a ram position which increases the pressure in the exhaust gas system. A change-over element is provided for the change-over between the engine braking system and the automatic turbine controller. To make the exhaust gas turbocharger variable, the automatic turbine controller and the engine braking system each have a modular design and a separate construction. A manual braking signal to the engine braking system, can be generated in a manually adjustable brake operating device. A change-over element is provided for changing over between the automatic braking controller and the brake operating device.
An exhaust gas turbocharger with a variable turbine geometry which, in an engine firing operation, is adjustable via an automatic turbine controller to a definable desired supercharging pressure in an intake port thereof and, in a braking operation, is adjustable via an engine braking system with an automatic braking controller as a function of operating parameters of the internal-combustion engine into a ram position which increases pressure in an exhaust gas system, comprising a first change-over element for a change-over between the engine braking system and the automatic turbine controller, wherein the automatic turbine controller and the engine braking system are individual modules, and a second change-over element operative to provide a change-over between the automatic braking controller and a manually adjustable brake operating device other than a vehicle service brake, whereby the manually adjustable brake operating device is configured to generate a manual braking signal that is directly suppliable to the engine braking system and that is compared with a rotational-speed-dependent braking limit value.
A turbocharging process using an exhaust gas turbocharger with a variable geometry which, in an engine firing operation, is adjustable via an automatic turbine controller to a definable desired supercharging pressure in an intake port thereof and, in a braking operation, is adjustable via an engine braking system with an automatic braking controller as a function of operating parameters of the internal-combustion engine into a ram position which increases pressure in an exhaust gas system, comprising a change-over element for a change-over between the engine braking system and the automatic turbine controller, comprising the steps of
Dependencies are inferred from the claim text.