Two-speed automatic transmission by wire for electric vehicles
A technology for automatic transmissions and electric vehicles, which is applied to vehicle gearboxes, magnetic drive clutches, multi-ratio transmissions, etc. It can solve the problems of large volume of automatic transmissions by wire, large volumes of electromagnetic clutches, and large power consumption. Simple structure, large transmission torque and high torque effect
Active Publication Date: 2018-08-10
SHANDONG UNIV OF TECH
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Problems solved by technology
However, in the above-mentioned patented technologies, the electromagnetic clutch used to realize the shift-by-wire process is large in size and low in speed, and the power consumption required by the electromagnetic clutch is large, so the automatic transmission by wire has a large volume, low speed and low operating performance. High consumption
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[0022] Below in conjunction with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention are described in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments; based on the present invention Embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] Such as figure 1 As shown, a kind of wire-controlled second-gear automatic transmission for electric vehicles of the present invention comprises an input shaft 1, an output shaft 2, an input gear 5, a first-gear input gear 6, a first-gear driving gear 7, a first-gear driven gear 8, a first gear Gear-by-wire friction and meshing transmission joint device 10, second-speed wire-controlled second-speed centrifugal ball arm joint device 20; input gear 5 is fixedly installed on input...
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The invention discloses an electric automobile x-by-wire two-gear automatic transmission. An input gear is mounted on an input shaft, and the input gear is constantly engaged with a first-gear input gear; the first-gear input gear is fixedly connected with a first-gear driven internal spline hub provided with side teeth; and by controlling joint and separation of a first-gear x-by-wire friction and engaged driving joint device and a second-gear x-by-wire centrifugal ball arm joint device, gear shifting control of the electric automobile x-by-wire two-gear automatic transmission is achieved. The electric automobile x-by-wire two-gear automatic transmission has the advantages of large transmitted torque, high rotating speed, absence of impact during jointing, smooth gear shifting, low operation energy consumption and the like.
Description
technical field [0001] The invention belongs to the technical field of electric vehicle transmission, and relates to an electric vehicle automatic transmission, more precisely, a wire-controlled second-speed automatic transmission for an electric vehicle. Background technique [0002] Automatic transmissions are widely used in various vehicles such as automobiles, electric vehicles, and construction machinery. The existing automatic transmissions mainly include hydromechanical automatic transmission (AT), metal belt continuously variable automatic transmission (CVT), mechanical automatic transmission (AMT) and dual clutch automatic transmission (DCT). The shifting process control of the above four types of automatic transmissions are all realized by electronically controlled hydraulic servo devices. The hydraulic servo devices are composed of hydraulic pumps, multiple hydraulic valves, multiple hydraulic clutches, multiple hydraulic brakes, etc., with complex structures and ...
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IPC IPC(8): F16H3/12F16D27/112
CPCF16D27/112F16H3/126F16H2200/0021F16H2200/0034F16H2200/2035
Inventor 曲金玉王吉华郭政斌张攀任传波
Owner SHANDONG UNIV OF TECH