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Vehicle and vehicle cruise control method

A cruise control and vehicle technology, applied in the field of vehicle and vehicle cruise control, can solve the problems of complex power transmission system structure, complex control strategy, low transmission efficiency, etc., achieve the best fuel economy, reduce fuel consumption, and increase the number of operating modes Effect

Active Publication Date: 2015-09-02
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the related technologies known to the inventor, the power transmission system in the vehicle is generally complex in structure, bulky, and low in transmission efficiency. When switching gears or modes, it is necessary to control multiple shift actuators at the same time, and the control strategy is complicated. ,Room for improvement

Method used

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  • Vehicle and vehicle cruise control method
  • Vehicle and vehicle cruise control method
  • Vehicle and vehicle cruise control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0156] Such as figure 2 As shown, the engine unit 1 is connected to the input end 313 of the double clutch 31, the first output end 311 of the double clutch 31 is connected to the first input shaft 21, and the second output end 312 of the double clutch 31 is connected to the second input shaft 22, The second input shaft 22 is coaxially sleeved on the first input shaft 21 .

[0157] A driving gear 25 is fixedly arranged on the first input shaft 21 and the second input shaft 22 respectively, and the first motor generator 41 is indirectly driven with the driving gear 25 on the second input shaft 22 through an intermediate gear 411 . Two driven gears 26 are fixedly arranged on the output shaft 24 , and the two driven gears 26 respectively mesh with the driving gears 25 on the first input shaft 21 and the second input shaft 22 to form two transmission gears.

[0158] The synchronizer 6 is arranged on the output shaft 24, and the driving gear of the main reducer (that is, the outp...

Embodiment 2

[0186] Such as image 3 As shown, the power transmission system 100 in this embodiment and figure 2 The difference of the power transmission system 100 in the above may only lie in the arrangement form of the second motor generator 43 . In this embodiment, each second motor-generator 43 drives the corresponding rear wheel 220 through a second speed change mechanism 72, and the remaining parts can be connected with figure 2 The power transmission system 100 in the embodiment is basically the same, and will not be repeated here. As for the specific working conditions, it is related to figure 2 The power transmission system 100 in the embodiment is basically the same, and the only difference is that the power transmission between the second motor generator 43 and the corresponding rear wheel 220 needs to go through the second transmission mechanism 72 , which will not be described in detail here.

Embodiment 3

[0188] Such as Figure 4 As shown, the power transmission system 100 in this embodiment and figure 2 The difference of the power transmission system 100 in the above may only lie in the arrangement form of the second motor generator 43 . In this embodiment, the second motor-generator 43 is one and drives the corresponding rear wheel 220 through a first speed change mechanism 71, and the remaining parts can be connected with figure 2 The power transmission system 100 in the embodiment is basically the same, and will not be repeated here. As for the specific working conditions, it is related to figure 2 The power transmission system 100 in the embodiment is basically the same, and the only difference is that the two rear wheels 220 are driven by a second motor-generator 43 and a first speed change mechanism 71, so without adding new components, only The differential function of the two rear wheels 220 cannot be realized by a motor and a transmission mechanism, but it can b...

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Abstract

A vehicle and a vehicle cruise control method. The vehicle comprises an engine unit (1), a speed changer unit (2a), a first electric motor generator (41), an output portion (5), a power switching apparatus, a second electric motor generator (42), and a power battery. The cruise control method comprises the following steps: when a signal indicating that a vehicle enters cruise control is detected, determining whether the vehicle meets a preset cruise control condition; if the vehicle meets the preset cruise control condition, controlling, according to a current working mode of the vehicle, the vehicle to enter a corresponding cruise mode; and when the current working mode of the vehicle is an EV mode, controlling the vehicle to enter into an EV cruise mode, and when the current working mode of the vehicle is an HEV mode, controlling the vehicle to enter into an HEV cruise mode. The cruise control method combines selection of driving modes with an automatic cruise function of obtaining constant-speed driving, thereby meeting different driving demands of a driver.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a vehicle cruise control method and a vehicle. Background technique [0002] With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, the vehicle is driven by an engine and / or an electric motor, and has multiple modes, which can improve transmission efficiency and fuel economy. [0003] However, in the related technologies known to the inventor, the power transmission system in the vehicle is generally complex in structure, bulky, and low in transmission efficiency. When switching gears or modes, it is necessary to control multiple shift actuators at the same time, and the control strategy is complicated. ,Room for improvement. Contents of the invention [0004] The object of the present invention is to solve at least one of the above-mentioned technical drawbacks. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/14
CPCB60W30/14B60W10/06B60W10/08B60W10/26B60W2520/10B60W2710/083B60W2710/0666B60K2310/242B60K6/387B60K6/442B60K6/445B60W50/0205B60W10/113B60W30/143B60W2050/0295B60W2510/186B60W2510/244B60W2540/10B60W2540/12B60W2540/16B60W20/10B60W20/11B60W2552/20B60W2552/15Y02T10/62
Inventor 杨冬生廉玉波张金涛罗红斌
Owner BYD CO LTD
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