A hybrid electric drive
A hybrid electric drive and power technology, which is applied to the arrangement of multiple different prime movers of power plants, pneumatic power plants, and general power plants, can solve the problems of low energy efficiency, the engine cannot directly drive vehicles, and low efficiency
Active Publication Date: 2022-01-04
深圳兴康动力总成有限公司
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Problems solved by technology
However, it has the following disadvantages: 1) The maximum vehicle speed in pure electric driving mode is low due to the limitation of the maximum speed of the first motor, which cannot meet the high performance requirements; 2) There is only one power split ratio, so it is difficult to Ensure better performance in a wide range of vehicle speeds in the hybrid driving mode; 3) In the pure electric driving mode, only the second motor drives the vehicle after deceleration, and the efficiency is low when the maximum speed in this mode is increased; 4) The engine cannot directly Drives the vehicle, especially at high speeds, and is therefore less energy efficient
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0020] see figure 1 , the hybrid electric drive device 100 includes an engine 1, a first motor 2, a second motor 3, a first planetary row 4, a second planetary row 5 and a split transmission mechanism 6, and the first planetary row 4 includes a first sun gear 41, a second planetary row A planetary carrier 42 and a first ring gear 43, the second planetary row 5 includes a second sun gear 51, a second planetary carrier 52 and a second ring gear 53, the engine 1 is fixedly connected to the first planetary carrier 42, and the first motor 2 It is fixedly connected with the first sun gear 41, the first ...
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The invention provides a hybrid electric drive device, which includes an engine, a first motor, a second motor, a first planetary row, a second planetary row and a split transmission mechanism; the first planetary row includes a first sun gear, a first planet carrier and The first ring gear and the second planetary row include the second sun gear, the second planet carrier and the second ring gear, the engine is fixedly connected to the first planet carrier, the first motor is fixed to the first sun gear, and the first planet carrier is connected to the first planet carrier. The second sun gear is fixed, the first ring gear is fixed to the second ring gear, and the shunt transmission mechanism can selectively combine the power output by the first ring gear and / or the power output by the second planet carrier with the power output of the second motor. After the confluence of power, the output drives the wheels, and more working modes are realized through the set split transmission mechanism, thereby improving the performance of the hybrid electric drive device.
Description
[technical field] [0001] The invention relates to the technical field of vehicle drive, in particular to a hybrid electric drive device. [Background technique] [0002] The existing power-split hybrid electric drive device based on the planetary row uses the planetary row to decompose the power of the engine into two paths, one path of power flow drives the first motor to generate electricity, and the other path of power flow merges with the power output of the second motor to drive the vehicle . However, it has the following disadvantages: 1) The maximum vehicle speed in pure electric driving mode is low due to the limitation of the maximum speed of the first motor, which cannot meet the high performance requirements; 2) There is only one power split ratio, so it is difficult to Ensure better performance in a wide range of vehicle speeds in the hybrid driving mode; 3) In the pure electric driving mode, only the second motor drives the vehicle after deceleration, and the ef...
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IPC IPC(8): B60K6/365B60K6/547
CPCB60K6/365B60K6/547
Inventor 曾浩文
Owner 深圳兴康动力总成有限公司