Intelligent preview control method for emergency rescue vehicle suspension
An emergency rescue and vehicle technology, applied to vehicle parts, suspensions, elastic suspensions, etc., can solve the problems of single active suspension preview control mode, failure to meet emergency rescue vehicles, and stability problems of the preview control system. Good control effect, easy implementation and promotion, simple and easy control method
Active Publication Date: 2018-08-03
YANSHAN UNIV
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Problems solved by technology
[0005] In order to solve the problem that the existing active suspension preview control method is single, which cannot meet the requirements of emergency rescue vehicles to achieve good control effects when driving at high speed and low speed, and solve the stability problem of the preview control system when driving at high speed on complex roads
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[0025] The specific embodiment of the inventive method is further described below in conjunction with accompanying drawing:
[0026] In order to improve the control effect of emergency rescue vehicles when driving at high speed and low speed and solve the problem of the stability of the preview control system when driving at high speed on complex roads. The invention provides an intelligent preview control method for the suspension of emergency rescue vehicles.
[0027] The detection system that the inventive method adopts, as figure 1 As shown, it includes a front preview sensor 1, a vehicle speed detector 2, an acceleration sensor 3 and an electronic control unit ECU4. Among them, the front preview sensor 1 is installed at the front of the vehicle at a reasonable installation angle and height, and collects the road surface irregularity z within a certain distance L ahead t The vehicle speed detector 2 is installed in the vehicle cab; the acceleration sensor 3 is fixed on t...
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The invention discloses an intelligent preview control method for emergency rescue vehicle suspension. A detection system comprises a vehicle speed detector, an electrical control unit ECU, a vehiclefront preview sensor and an acceleration sensor. The intelligent preview control method for the emergency rescue vehicle suspension comprises the following steps of enabling the vehicle speed detectorto measure current vehicle running speed; using the vehicle front preview sensor to measure road surface information within a certain distance in the front; using the acceleration sensor to measure acceleration information of front wheels; transmitting the measured current information to a pre-processing module in the electrical control unit ECU and calculating a speed node vmax allowed by vehicle front preview control of an active suspension system; and comparing the current vehicle running speed and the speed node and enabling the electrical control unit ECU to select to execute a vehicle front preview module or an interaxial preview module so as to form a final control method. According to the intelligent preview control method for the emergency rescue vehicle suspension, control effects of emergency rescue vehicles during running at high speeds and low speeds are improved and the stability problem of a preview control system when a vehicle runs on a complicated road surface at a high speed is solved.
Description
technical field [0001] The invention belongs to the field of vehicle suspension control, in particular to an intelligent preview control method for emergency rescue vehicle suspension. Background technique [0002] Emergency rescue vehicles have a large load and high speed, and are vulnerable to the impact of harsh road surfaces during driving. Therefore, there is an urgent need for a suspension system with superior performance. At present, active controllable suspension is often used to improve the ride comfort and handling stability of vehicles, and the development of a control method with stable performance and wide application has always been a key issue in the design of active suspension systems. [0003] Due to the influence of factors such as signal collection and transmission, controller calculation and actuator actuation process, there is inevitably a time-lag phenomenon in the suspension control system, resulting in the control acting on the structure lagging behi...
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Login to View More IPC IPC(8): B60G17/015B60G17/019
CPCB60G17/015B60G17/019
Inventor 巩明德颜鑫曲中元王豪豪
Owner YANSHAN UNIV