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183results about How to "Reduce electricity demand" patented technology

Dual-mode electromechanical variable speed transmission apparatus and method of control

The current invention discloses a dual-mode electro-mechanical variable speed transmission. Said transmission includes an input shaft, an output shaft system, a planetary gear system having at least three co-axial rotating members, two electric machines along with the associated controllers for the electric machines, and at least a clutch. Said planetary gear system has at least three branches; each branch corresponds to a co-axial rotating member. The first branch couples to the first electric machine with a fixed speed ratio; another branch couples to the input shaft with a fixed speed ratio; and yet anther branch couples to the output shaft system with a fixed speed ratio; the second electric machine couples selectively to two of the branches in the planetary gear system with different speed ratios. Said two branches are not the first branch and one of the said two branches is connected to the output shaft system. Said dual-mode electro-mechanical variable speed transmission is capable of providing at least two power splitting operation modes, including an output power splitting mode. Different operation modes cover different speed ratio regimes. At the mode switching point, the corresponding clutch or clutches is automatically synchronized. Thus the speeds of the rotation members of the transmission are continuous, and the transmission is free from shock loads at the operating mode switching point. In addition, said transmission is capable of providing operations with at least a fixed input-to-output speed ratio.
Owner:SHANDONG LIANCHENG GREENMAX TECH

Thermal management system and control method for hydrogen fuel cell vehicle

The invention relates to a thermal management system and control method for a hydrogen fuel cell vehicle. The method includes an expansion kettle, a water pump, an electronic thermostat, a fuel cell radiator, a solenoid valve, a fuel cell stack and an ion exchanger. In order to overcome the restriction that an existing fuel cell stack can not be started under the condition of too low ambient temperature, an auxiliary water heating scheme is designed in a small circulation branch to achieve the fast start-up of the fuel cell stack at low temperature and improve the adaptability of the fuel cellstack to the low temperature environment. The waste heat recovery and utilization of the fuel cell stack can be achieved by adding an auxiliary air-conditioning water heating and heat exchange systemin a water system. The electricity demand of an air heater is reduced, the electric energy of the whole vehicle is saved, and the endurance range of vehicles in winter is increased. Through the design improvement of a degassing device for the fuel cell stack, the degassing problem of the fuel cell stack water system in the process of filling and operation is solved, and the reliability of the fuel cell heat management system is improved.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Method and arrangement for the energy-saving operation of dishwashers

The energy-saving operation of dishwashers (110; 410) plays an important role, in particular for larger enterprises, e.g. for the canteens of hospitals or large enterprises, and in the medical disinfection field. The invention thus discloses a method and a device, in which a total maximum electric output is assigned to a group of electric consumer elements (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) of a dishwasher (110; 410). In addition, at least two output levels are assigned to each electric consumer element (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) of said group. An optimum combination of output levels is then selected in a requirement determination step, based on an operational state B of the dishwasher (119), whereby for each consumer element (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) the selected output level is adapted to the output requirement of the consumer element (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) in operational state B and the total output of all consumer elements (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) does not exceed the maximum electric total output. The operation of the dishwasher (110; 410) can also be divided into three phases, a start phase, an activation phase and a load control phase. The output levels of the individual consumer elements (14, 15, 18, 19, 22, 23, 26, 33; 418, 420, 432, 438) are optimally adapted in accordance with the requirements in said operating phases, thus allowing a response to be made to any fluctuations in the operational state. The inventive method permits significant energy savings to be made in comparison to conventional methods for controlling dishwashers (110; 410) and leads to a more rapid attainment of a ready status of the dishwasher (110; 410) upon activation.
Owner:MEIKO MASCHENBAU

Multimode electromechanical variable speed transmission apparatus and method of control

InactiveUS20150292600A1Improve fuel efficiencyImproved performance characteristicHybrid vehiclesTransmission elementsElectricityPower split
The current invention discloses a multi-mode electro-mechanical variable speed transmission. The transmission includes an input shaft, an output system, at least one planetary gear set having at least three branches each represents a co-axial rotating member, two electric machines along with the associated controllers for the electric machines, and at least a clutch. The first branch couples to the first electric machine with a constant speed ratio; the second branch couples to the output system with a constant speed ratio; and the third branch couples to the input shaft with a constant speed ratio; the second electric machine selectively couples to two different the branches of the planetary gear set with two different constant speed ratios, respectively. Said multi-mode electro-mechanical variable speed transmission is capable of providing multiple operation modes including two electric drive modes and two power split operation modes. Different operation modes cover different speed ratio regimes and are suitable for different power requirements. At the mode switching point, the corresponding clutch or clutches is automatically synchronized. This avoids shock loads during operation mode switching. The transmission is capable of providing operations with at least a fixed output to input speed ratio.
Owner:AI XIAOLIN +3

Vehicle electrical power management and distribution

Vehicles, systems, and methods are disclosed for providing and directing first power, such as vehicle generator power, and alternate sources of power. In a particular embodiment, a vehicle includes a power distribution grid that includes a plurality of power sources and a plurality of distributions buses configured to distribute power from the plurality of power sources. The plurality of power sources include an engine-driven power source is configured to provide first power where the first power has first power characteristics. The plurality of power sources also includes a plurality of engine-independent power sources including a first alternate power source configured to provide first alternate power. The first alternate power has first alternate power characteristics that are different than the first power characteristics. The plurality of engine-independent power sources also includes a second alternate power source configured to provide second alternate power. The second alternate power has second alternate power characteristics that are different from the first power characteristics and different from the first alternate power characteristics. The vehicle also includes a global controller that sends control signals to control generation of power by the engine-driven power source, the first alternate power source and the second alternate power source via the plurality of distribution buses responsive to power demand of the power distribution grid.
Owner:THE BOEING CO
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