摘要:
A diagnostic system according to the present invention diagnoses system failure of a secondary air injection system. The secondary air injection system includes a pump that provides air to an exhaust system via a conduit and a valve that controls the flow of air through the conduit. A pressure sensor measures pressure in the conduit. A controller predicts pressure in the conduit during first, second and third operational phases of the secondary air injection system. The controller compares the measured pressure to the predicted pressure to evaluate operation of the secondary air injection system. During the first phase, the secondary air injection system is used to reduce vehicle emissions. During the second phase, the valve is shut while the pump is on. During the third phase, the pump is turned off while the valve is closed.
摘要:
A method and control system for verifying cold start emissions reduction control in a vehicle using an internal combustion engine utilizes measured engine speed and commanded ignition timing to calculate an estimated actual engine-out thermal energy flow. An expected thermal energy flow is calculated based on designed engine speed and ignition timing. A residual energy flow is calculated based on a difference between the estimated actual thermal energy flow and the expected thermal energy flow. Meanwhile, a system quality-weighting factor is calculated based on several measured engine parameters. A qualified energy flow residual is calculated based on the system quality weight and the residual energy flow. The qualified energy residual flow is accumulated, averaged based on the accumulated quality weight, and then filtered. Diagnostic control determines that if the cold start emissions reduction control is operating correctly based on the filtered averaged qualified energy flow residual comparing a predetermined range.
摘要:
Systems and methods are described herein that improve control of a shapeable or steerable instrument using shape data. Additional methods include preparing a robotic medical system for use with a shapeable instrument and controlling advancement of a shapeable medical device within an anatomic path. Also described herein are methods for altering a data model of an anatomical region.
摘要:
Systems and methods are described herein that improve control of a shapeable or steerable instrument using shape data. Additional methods include of controlling a shapeable instrument within an anatomical region using a robotic medical system.
摘要:
Systems are described herein that improve control of a shapeable or steerable instrument using shape data. Additional systems use such shape data for improved mapping or adjusting models of the instrument. Such systems include robotic medical systems for controlling a shapeable instrument within an anatomical region having a controller, one or more actuators, and a localization system for guiding one or more shapeable instruments.
摘要:
Systems and methods are described herein that improve control of a shapeable or steerable instrument using shape data. Additional methods include of controlling a shapeable instrument within an anatomical region using a robotic medical system.
摘要:
Systems and methods are described herein that improve control of a shapeable or steerable instrument using shape data. Additional methods include preparing a robotic medical system for use with a shapeable instrument and controlling advancement of a shapeable medical device within an anatomic path. Also described herein are methods for altering a data model of an anatomical region.
摘要:
Various embodiments of the present invention are directed toward a linear free piston combustion engine with indirect work extraction via gas linkage, comprising: a cylinder with two opposed free pistons disposed therein that form a combustion section in a center of the cylinder, each free piston comprising a front face facing the combustion section and a back face facing the opposite direction; two opposed extractor pistons disposed in their own cylinders at opposite ends of the free piston cylinder, each extractor piston comprising a front face facing the combustion section and a back face facing the opposite direction; and two gas linkages, each gas linkage comprising a volume sealed between the back face of a free piston and the front face of an extractor piston; wherein each extractor piston is connected to a rotary electromagnetic machine.
摘要:
Various embodiments of the present invention are directed toward a linear free piston combustion engine with indirect work extraction via gas linkage, comprising: a cylinder with two opposed free pistons disposed therein that form a combustion section in a center of the cylinder, each free piston comprising a front face facing the combustion section and a back face facing the opposite direction: two opposed extractor pistons disposed in their own cylinders at opposite ends of the free piston cylinder, each extractor piston comprising a front face facing the combustion section and a back face facing the opposite direction; and two gas linkages, each gas linkage comprising a volume sealed between the back face of a free piston and the front face of an extractor piston; wherein each extractor piston is connected to a rotary electromagnetic machine.
摘要:
Systems and methods are described for automating aspects of minimally invasive therapeutic treatment of patients. In one embodiment a robotic catheter system may comprise a controller including a master input device; and an electromechanically steerable elongate instrument having a proximal interface portion and a distal portion, the proximal interface portion being configured to be operatively coupled to an electromechanical instrument driver in communication with the controller, the distal portion being configured to be interactively navigated adjacent internal tissue structures of a patient's body in response to signals from the controller; wherein the distal portion of the elongate instrument comprises an antenna operatively coupled to the controller, and wherein the controller is configured to determine the temperature of structures adjacent to the distal portion of the elongate instrument utilizing radiometry analysis.