51results about How to "Reduce risk cost" patented technology

The present invention relates to the technical field of intelligent piloting, in particular to a hardware-in-the-loop testing system and method for intelligent piloting advanced assisted driving, including a power management module, a workstation, a real-time simulator, a video injection device, a fault injection device, a signal conditioning device, and a car machine Equipment, program-controlled power supply, and intelligent domain controller; the present invention uses a real intelligent domain controller, and injects these signals into the domain controller through scene software to construct the required sensor signals. This test method can discover software algorithms in a more timely and comprehensive manner. and hardware defects, shorten the development cycle, and save a lot of risk costs caused by real vehicle testing; by analyzing the real vehicle data, generating the OpenDrive format, and importing the scene simulation software, the problem of matching the simulation map with the actual algorithm loaded map module is solved; The machine receives the positioning information simulated by the virtual scene, and feeds back the navigation information output to the controller to realize the verification of the high-precision positioning fusion algorithm.

The invention discloses a method for measuring the radial flow path clearance of a steam turbine through a laser tracking measuring system. The method comprises the steps that S10, the radial relativeposition of a rotor and a steam cylinder in r the cold state of the steam cylinder is measured; S20, the laser tracking measuring system is adopted to measure a shaft seal and rotor hub surfaces corresponding to partition plates in a station transferring mode, and the diameters and rotor vertical arcs of the measured rotor hub surfaces are fitted; S30, the laser tracking measuring system is adopted to measure tooth tip coordinates of all stages of partition plate steam seal blocks and shaft seal steam seal blocks in the cylinder, and shaft seal bores on the outermost side of the steam end andthe exciter end in a station transferring mode, the shaft seal bores on the outermost side of the steam end and the exciter end are fitted, a cylinder body center line is created, and the distances from the tooth tips of all the stages of partition plate steam seal blocks and the shaft seal steam seal blocks to the cylinder body center line are fitted; and S40, the laser tracking measuring systemis adopted to fit the radial clearance of an actual partition plate steam seal and the shaft seal steam seal in the cylinder under the cold state according to the measured relative position of the rotor and the steam cylinder and based on data in the step S20 and the step S30. By applying the method for measuring the radial flow path clearance of the steam turbine through the laser tracking measuring system, the measuring precision is improved.