Cruise control method and system for an electric vehicle
A cruise control and electric vehicle technology, applied in the automotive field, can solve problems such as unsatisfactory cruise control, and achieve the effects of improving stability and comfort, reducing inertial force, and reducing machine wear
Active Publication Date: 2015-11-18
BEIQI FOTON MOTOR CO LTD
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Problems solved by technology
[0004] However, at present, there are few electric vehicles with cruise control systems on electric vehicles, and there are also few involvements in the automotive industry, and even if cruise control systems are built on electric vehicles, relatively speaking, cruise control systems also have these defects. , the cruise control is not ideal
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[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0032] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...
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The invention provides a method and a system for cruise control of an electric automobile. The cruise control method comprises the following steps that the cruise control system receives cruise commands; a current automobile speed of the electric automobile is detected to obtain a current automobile speed signal, and a target automobile speed of the electric automobile is set to produce a target automobile speed signal; whether the target automobile speed signal is higher than a safety speed signal preset in the cruise control system or not is judged; if the target automobile speed signal is higher than the safety speed signal, the current automobile speed signal is compared with the target automobile speed signal to obtain an automobile speed difference signal, and searching is carried out in a high speed torque explain table or a fine adjustment torque explain table according to the automobile speed difference value to obtain a torque value of the electric automobile, or else the cruise control system receives exit commands and exits from the cruise control; and the rotating speed of an electromotor of the electric automobile is regulated according to the torque value. According to the method and the system, the cruise control is accurate and energy-saving, can reduce driving fatigue of a driver, and reduces hardware loss of the electric automobile to a certain degree.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a cruise control method and system for electric automobiles. Background technique [0002] Cruise control system (CRUISE CONTROL SYSTEM, abbreviated as CCS) is also known as vehicle speed control system or constant speed control system, which is essentially an automatic constant speed driving control system. Cruise control systems have become widespread since they were first used in the United States in 1961. Cruise control systems are installed on most cars in the United States, and the proportion of cruise control systems installed on cars produced in Japan and Europe is also increasing. At present, my country's current domestic mainstream OEMs have almost all installed new vehicles. cruise control system. For an internal combustion engine vehicle, the speed adjustment during the cruising process of the vehicle is finally carried out by adjusting the opening degree of the ...
Claims
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IPC IPC(8): B60W30/14
Inventor 刘明丁刘溧
Owner BEIQI FOTON MOTOR CO LTD