Constant-speed cruise control method and device for composite power split hybrid electric vehicle

A hybrid electric vehicle and compound power splitting technology, which is applied in the directions of hybrid electric vehicles, control devices, motor vehicles, etc., can solve the problems such as the inability to meet the needs of the hybrid electric vehicle with compound power splitting for cruise control, and achieves extensive application value, saving Space, simple operation effect

Active Publication Date: 2017-05-31
江西鼎盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing cruise control technology is either designed based on the traditional internal combustion engine system (need to add an independent cruise control unit and actuator), or is designed for the control algorithm of the series and parallel hybrid system (due to the different mechanisms of the power sys

Method used

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  • Constant-speed cruise control method and device for composite power split hybrid electric vehicle
  • Constant-speed cruise control method and device for composite power split hybrid electric vehicle
  • Constant-speed cruise control method and device for composite power split hybrid electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] A fixed-speed cruise device for a compound power split hybrid electric vehicle, such as figure 1 As shown, including monitoring module, algorithm module, actuator module and acousto-optic module;

[0025] The monitoring module includes a function switch module, a system signal module, a pedal signal module, a vehicle speed module and a cruise setting vehicle speed module. The monitoring module is used to monitor the running state of the vehicle and driver behavior during cruise driving and obtain relevant signals;

[0026] Algorithm modules include cruise switch information processing module, cruise logic state management module, vehicle speed closed-loop control module, cruise torque management module and mode discrimination and collaborative control algorithm module. The function switch module is electrically connected to the cruise switch signal processing module; cruise switch Signal connection between the signal processing module and the cruise logic s...

Example Embodiment

[0031] Example 2

[0032] A cruise control method for a compound power split hybrid electric vehicle at a constant speed. The control flow chart is as follows figure 2 As shown, using the constant-speed cruise device of the compound power split hybrid electric vehicle in Example 1, when the vehicle is in a non-cruising driving state, the following steps are performed:

[0033] S101: Read the cruise combination switch, system status, and current vehicle speed information in the monitoring module to determine whether the driver has cruise driving intentions, if yes, perform step S102; if not, perform step S111;

[0034] S102: Detect whether the system has a fault, if yes, execute step S111, if otherwise, execute step S103;

[0035] S103: Determine whether the current vehicle speed V is greater than or equal to the cruise first vehicle speed threshold V1 and less than or equal to the cruise second vehicle speed threshold V2, if yes, proceed to step S104; if otherwise, proceed to step S...

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PUM

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Abstract

The invention provides a constant-speed cruise control device for a composite power split hybrid electric vehicle. The constant-speed cruise control device comprises a monitoring module, an algorithm module, an actuator module and a sound and light module, wherein the monitoring module is electrically connected with the algorithm module; the algorithm module is respectively connected with the actuator module and the sound and light module through a CAN bus. The invention further provides a constant-speed cruise control method for the composite power split hybrid electric vehicle. The constant-speed cruise control method comprises the following steps: when the vehicle is in a non-cruise driving state, reading relevant information in the monitoring module; when cruise driving conditions are met, sending out a cruise instruction according to driver operation, enabling the vehicle to be ready to enter cruise driving and calculating cruise demand torque; judging whether to enter a hybrid power cruise mode or a pure electric cruise mode or not according to the cruise demand torque as well as a power battery pack SOC. The constant-speed cruise control device provided by the invention has the benefits that no additional device is required to be arranged, a device on a vehicle system is directly utilized, the cost is reduced, and the space is saved; the method is simple to operate and has wide application values.

Description

Technical field [0001] The invention relates to a constant speed cruise control method and device of an automobile, in particular to a constant speed cruise control method and device of a compound power split hybrid electric automobile. Background technique [0002] With the increase in car ownership, traditional cars are facing problems such as energy shortages, environmental pollution, and increasingly stringent emission regulations. Hybrid vehicles, as a transition from traditional internal combustion engines to pure electric vehicles, are currently solving energy shortages and environmental pollution. The most practical technical route to the problem, which has the advantages of long cruising range, good power, low emissions and low energy consumption, does not require the construction of ground charging stations, and is the most likely to be industrialized at this stage. Another serious social problem brought about by the increase in car ownership is the frequent occurrence ...

Claims

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Application Information

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IPC IPC(8): B60W10/08B60W10/06B60W10/30B60W20/15B60W20/16B60W40/08B60W40/105B60W30/14
CPCB60W10/06B60W10/08B60W10/30B60W30/146B60W40/08B60W40/105B60W2050/0014B60W2050/0043B60W2050/0075B60W2510/244B60W2520/10B60W2540/215B60W2710/0666B60W2710/083B60W2710/30Y02T10/62
Inventor 单金荣钟发平王晨张彤于海生
Owner 江西鼎盛新材料科技有限公司
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