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AssigneeInternational Engine Intellectual Property Company, LLC
InventorsQianfan Xin, Martin R. Zielke, Michael D. Bartkowicz, Luis Carlos Cattani, Steve Gravante, Timothy Prochnau, Antoun Y. Calash, John L. Cagney
Estimating the term…
A control system for engine braking for a vehicle powered by a turbocharged engine uses a supercharger to assist a turbocharger compressor to boost turbocharger air flow into the engine cylinders. An engine driven air pumping device draws ambient air, or alternately exhaust gas through the pump inlet, compresses the air, and delivers the compressed air through the pump outlet to the turbocharger compressor inlet or alternately the turbocharger compressor outlet. The increased air flow into the cylinders and out of the cylinder exhaust valves increases retarding power of the vehicle.
A method of controlling engine braking in a vehicle powered by an engine, the engine having a plurality of pistons reciprocating within a plurality of cylinders, reciprocation of the pistons causing rotation of a crankshaft, and an intake valve and an exhaust valve associated with at least one of the cylinders, the intake valve opening the cylinder to an intake manifold and the exhaust valve opening the cylinder to an exhaust manifold, the engine having a turbocharger having a turbine with a turbine inlet and a turbine outlet, the turbine inlet connected to the exhaust manifold and the turbine outlet connected to an exhaust outlet path, the turbine driven by exhaust gas passing from the turbine inlet to the turbine outlet, and a compressor mechanically driven by the turbine, during engine operation the compressor drawing ambient air through a compressor inlet and delivering pressurized air through a compressor outlet into the intake manifold, the comprising the step of:
A control system for engine braking for a vehicle powered by an engine, the engine having a plurality of cylinders and an intake valve and an exhaust valve associated with at least one of the cylinders, the intake valve opening the cylinder to an intake manifold and the exhaust valve opening the cylinder to an exhaust manifold, the control system comprising:
Dependencies are inferred from the claim text.