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Systems and methods to regulate dynamic settings for engine speed control management

  • US 10,371,077 B2
  • Filed: 08/04/2017
  • Issued: 08/06/2019
  • Est. Priority Date: 08/04/2017
  • Status: Active Grant
First Claim
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1. A vehicle, comprising:

  • an engine that includes an engine electronic control unit (engine ECU);

    a set of sensors that include an engine speed sensor, a vehicle speed sensor, and a throttle position sensor; and

    an electronic control unit (ECU) communicatively coupled to the engine ECU and the sensors;

    wherein the ECU is configured to calculate and provide engine speed limit values to the engine ECU;

    wherein calculating engine speed limit values includes;

    detecting that an engine speed has increased beyond a governor activation threshold value;

    determining a dynamic engine speed limit;

    determining whether conditions for applying the dynamic engine speed limit are met; and

    while the conditions for applying the dynamic engine speed limit are met, repeatedly updating the dynamic engine speed limit to a subsequent dynamic engine speed limit; and

    wherein updating the dynamic engine speed limit includes;

    determining a current engine speed value;

    using a previous dynamic engine speed limit as the subsequent dynamic engine speed limit in response to determining that the current engine speed value is between the governor activation threshold value and an offset dynamic engine speed limit;

    using a new dynamic engine speed limit as the subsequent dynamic engine speed limit in response to determining that the current engine speed value is between the previous dynamic engine speed limit and the offset dynamic engine speed limit; and

    transmitting the subsequent dynamic engine speed limit to the engine ECU of the engine for implementation.

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