618 results about "Automotive engineering" patented technology

A control device is provided for a hybrid vehicle power transmitting apparatus wherein when a fuel type supplied to an engine is altered, a drop in startability of the engine resulting from alteration on the fuel type is suppressed. Fuel-type determining means determines the fuel type for use in operating the engine, based on which a reactive control representing a control of reactive control of a second electric motor counteracting rotational resistance of the engine during engine startup, is altered. Accordingly, second-motor torque (reactive torque) for increasing an engine rotation speed during engine startup is adjusted depending on the fuel type, thereby increasing a temperature of fuel compressed and expanded in the engine, to a level available to initiate an ignition. This prevents the alteration of the fuel type from causing degradation in startability of the engine when the fuel type supplied to the engine is altered.

The invention belongs to the technical field of batteries, and particularly relates to a method for evaluating performance states of automotive power batteries. Through performing second-order equivalent circuit modeling on automotive power batteries (including lead-acid batteries, nickel-metal hydride batteries, lithium ion batteries, fuel batteries, super batteries and the like), the performance states of the batteries (a state of charge (SOC) and a state of health (SOH)) are transformed to parameters of an equivalent circuit model. An impulse charging-discharging experiment result of each automotive power battery is handled by using a second-order exponential damping fitting method in Origin software, so that the parameters of equivalent resistance and equivalent capacitance in the power batteries are obtained. A database of the power battery model parameters and the battery performance states is established as the basis of evaluating the performance states of the batteries in an operating process of an automobile, so that the power management can be optimized, problems can be found timely, and accidents are avoided.

A trailer hitch alignment hitch system uses height adjustable stanchions with length adjustable arms terminating in mirrors. The stanchions are respectively connectible to a tow vehicle and a trailer and placed so that the mirror is aligned vertically over the hitch connection component of the tow vehicle and the trailer and adjusted so that the respective mirrors are at different heights. The tow vehicle operator backs the tow vehicle until the mirrors visually indicate vertical alignment by one mirror coming into place below the other mirror and obstructing the view of the hitch component.

The invention provides a novel megawatt wind generating set testing system and a testing method thereof. Energy provided by a power system provides electric energy for a double shaft-extension dragging motor by a series of devices; then the dragging motor drives a tested set to operate by a series of devices such as a wind wheel simulator and the like; and the electric energy generated by the tested set is returned to a distribution transformer by a series of devices so that energy feedback is realized. The tested set can simulate the characteristics of a wind turbine under different wind conditions by means of the wind wheel simulator and the output characteristics of the tested set can be detected by the testing system. Meanwhile, the low voltage ride through (LVRT) performance of the tested set can be tested by arranging an LVRT device in the feeding link. The system has the advantages of electric energy saving, flexible configuration and wide applicable power range, capability of testing the control performance and the output power characteristics of the tested set, capability of detecting the low voltage ride through (LVRT) capability of the tested set by adopting the LVRT device, strong compatibility and expansibility and capability of knowing the testing conditions on site in time and meeting multidirectional testing requirements.

The invention relates to the technical field of new energy vehicles, in particular to a control system and method for an air conditioner of an electric vehicle. The system comprises a remote control module mounted in a mobile device, a background server and the electric vehicle and is characterized in that the electric vehicle comprises a vehicle-mounted intelligent terminal, an air conditioner related component control system, an awakening relay and a storage battery; the remote control module communicates with the background server through a mobile network, the background server communicates with the vehicle-mounted intelligent terminal through the mobile network, and the vehicle-mounted intelligent terminal is connected to a CAN network of the electric vehicle; two contact points of the awakening relay are connected with the storage battery and the air conditioner related component control system respectively, and a control end of the awakening relay is electrically connected with the vehicle-mounted intelligent terminal; the air conditioner related component control system comprises an air conditioner control module, a complete vehicle controller, a battery management module, a DCAC inverter and a DCDC convertor.

The invention discloses a physical simulation test system for a subsea production facility hydraulic control system. The physical simulation test system comprises a hydraulic power station, a hyperbaric cabin, an oil supply umbilical pipe, a subsea distribution module, a subsea control module, an actuator module, an oil return umbilical pipe, and a hyperbaric cabin oil return pipe, wherein the hydraulic power station is connected with the hyperbaric cabin and the oil supply umbilical pipe through a hyperbaric cabin oil supply pipe respectively; the oil supply umbilical pipe is connected with an inlet of the subsea distribution module; an outlet of the subsea distribution module is connected with the subsea control module and the actuator module respectively; the actuator module is connected with the oil return umbilical pipe which is connected with the hyperbaric cabin oil return pipe; the hyperbaric cabin oil return pipe is connected with the hydraulic power station; and parts are connected so as to form the physical simulation test system for the hydraulic control system. By a test platform of the subsea production facility hydraulic control system, the simulation and research of the whole subsea hydraulic control system in the actual engineering can be accurately finished.

A compressed gas energy storage and release (CGESR) system and method. The system has a gas compressor, a container for storing compressed gas, a pressure engine, and an underground high temperature region. Conduits connect the gas compressor, the container and the pressure engine. The compressed gas drives the pressure engine. An electrical power generating means is operatively connected to said pressure engine to generate electricity. The system further comprises a means to heat at least a portion of one of the conduits utilizing heat from the underground high temperature region to heat the compressed gas therein prior to driving the pressure engine.

A system for diagnosing and repairing vehicles includes a diagnostic vehicle system having at least one electronic controller for configured to execute algorithms that generate data related to the diagnostic operations of the vehicle. Also includes is an interface in communication with the at least one electronic controller of the diagnostic vehicle system and at least one electronic controller of the vehicle. The electronic controller is configured to provide access via an application programming interface to a user via the interface to data generated by the algorithms and restrict access to the algorithms that generate the data related to the diagnostic operations of the vehicle.

The invention relates to a punching and grooving device, in particular to a punching and grooving device for manufacturing small wood vehicle wheels. The technical objective is to design and provide the punching and grooving device for manufacturing the small wood vehicle wheels which is capable of simultaneously punching and grooving the wood vehicle wheels, convenient to operate and high in working efficiency, and is capable of collecting the punched and grooved wood vehicle wheels. The punching and grooving device for manufacturing the small wood vehicle wheels comprises a base, a rotatingshaft, a circular frame and the like, wherein the rotating shaft is rotationally connected to the middle of the top of the base, the rotating shaft is connected with the base through a bearing seat, and the circular frame capable of placing the wood vehicle wheels is fixedly connected to the top end of the rotating shaft. According to the punching and grooving device for manufacturing the small wood vehicle wheels, the proper number of wood vehicle wheels are put into the circular frame to be fixed by a clamping mechanism, a punching machine is started, a pushing plate is pushed to move downwards, the punching machine can punch the wood vehicle wheels, a grooving ring grooves the wood vehicle wheels, and the situation that a punching tool does not need to be taken by a human hand to punchthe wood vehicle wheels, and then a grooving tool is replaced for grooving is avoided, so that the working efficiency is high.

A system and a process for testing a gas turbine engine or component thereof, especially for a large aero gas turbine engine, and for a process for testing a large industrial gas turbine engine that requires large flow capacity and pressure ratios. The system and process may include the use of a large compressed air storage reservoir to provide compressed air to the testing system. Further, the system and process may also include the use of a pre-heating system, which may include a heater and a heat exchange device, to warm the compressed air from the compressed air storage reservoir to a temperature suitable to simulate normal operating conditions of the gas turbine engine or component thereof.

A control apparatus for an engine increases an intake air quantity just before engine stop to increase a compression pressure in a compression stroke. As the compression pressure is increased, a negative torque in the compression stroke increases and obstructs engine rotation, and brakes the engine rotation. Thus, a range of crank angle, in which torque is below engine friction, that is, in which engine rotation can be stopped, is reduced. As a result, variation in engine rotation stop position is reduced to be within a small range of crank angle. Information of engine rotation stop position is stored, and the stored information of engine rotation stop position is used at the start of an engine to accurately determine an initial injection cylinder and an initial ignition cylinder to start the engine.

A vehicle includes: a fuel tank into which gas is filled from a gas station that has a receiver; a transmitter; and a control device connected to the transmitter. The control device changes a transmission cycle of a signal transmitted from the transmitter to the receiver during the gas filling from the gas station into the fuel tank, according to a state quantity regarding an interior of the fuel tank.