Engine sound enhancement system for a fixed gear transmission

摘要

A control system for a vehicle having a fixed gear transmission and an engine that outputs an actual RPM signal is provided. The control system includes a vehicle bus, a shifting module, a simulated RPM module, and an engine sound enhancement (“ESE”) module. The vehicle bus transmits a signal indicating a plurality of operating conditions of the vehicle. The shifting module receives the signal from the vehicle bus to determine if the operating parameters of the vehicle indicate that a gear shift by the fixed gear transmission is imminent within a predetermined amount of time. The simulated RPM module is in communication with the shifting module for generating a simulated RPM signal if the gear shift is imminent. The simulated RPM signal has a greater increase in engine RPM with respect to time prior to the gear shift compared to the actual RPM signal.

主权项

1. A control system for a vehicle, the vehicle having a fixed gear transmission and an engine that outputs an actual RPM signal, the fixed gear transmission configured for selectively performing a gear shift, comprising:
a vehicle bus transmitting a signal indicating a plurality of operating parameters of the vehicle; a computer processing device communicatively coupled to the vehicle bus; a shifting module executable by the computer processing device, the shifting module receiving the signal from the vehicle bus and determining if the plurality of operating parameters of the vehicle indicate that the gear shift by the fixed gear transmission is imminent within a predetermined amount of time, the gear shift determined to be imminent within the predetermined amount of time as a function of the operating parameters, the operating parameters including a combination of an engine speed and an engine torque; a simulated RPM module executable by the computer processing device, the simulated RPM module in communication with the shifting module for generating a simulated RPM signal upon determining the gear shift is imminent, wherein the simulated RPM signal has a greater increase in engine RPM with respect to time prior to the gear shift compared to the actual RPM signal, wherein the simulated RPM signal decreases in RPM at a greater rate with respect to time after the gear shift compared to the actual RPM signal; and an engine sound enhancement (“ESE”) module executable by the computer processing device, the ESE module for receiving the simulated RPM signal from the simulated RPM module and determining ESE tones based on the simulated RPM signal.