CONTROL CIRCUIT AND METHOD FOR FUEL CONSERVATION MULTI-STATE SWITCH

Title:

CONTROL CIRCUIT AND METHOD FOR FUEL CONSERVATION MULTI-STATE SWITCH

Document Type and Number:

WIPO Patent Application WO/2021/013015

Kind Code:

A1

Abstract:

A control circuit and method for a fuel conservation multi-state switch. The circuit comprises: a vehicle body ECU unit (10), a fuel conservation control unit (20), and a PWM voltage adjustment unit (30). The fuel conservation control unit (20) connects to the vehicle body ECU unit (10) by means of a CAN bus so as to acquire a CAN signal, and determines, according to the acquired CAN signal, a gear level of a switch required by a current vehicle, and outputs a PWM pulse signal having a corresponding duty cycle. The PWM voltage adjustment unit (30) connects to the fuel conservation control unit (20) so as to receive the PWM pulse signal, and outputs, according to the inputted PWM pulse signal, a corresponding gear level voltage value. The vehicle body ECU unit (10) connects to the PWM voltage adjustment unit (30) so as to receive the gear level voltage value, and controls a rotation speed and torque of an engine according to the inputted gear level voltage value. The control circuit and method for a fuel conservation multi-state switch achieve both a power target and an economical target while ensuring vehicle performance, and eliminate the need for manual intervention of gear operation, thereby improving driving safety.

Inventors:

CHEN WENSHUN (CN)
LI JIAXIANG (CN)

Application Number:

PCT/CN2020/102151

Publication Date:

January 28, 2021

Filing Date:

July 15, 2020

Export Citation:

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Assignee:

XIAMEN YAXON NETWORK CO LTD (CN)

International Classes:

F02D29/02

Foreign References:

CN111305957A	2020-06-19
CN205532901U	2016-08-31
CN201301754Y	2009-09-02
CN104358620A	2015-02-18
CN102647172A	2012-08-22
CN101825026A	2010-09-08
CN103832288A	2014-06-04
US20130234610A1	2013-09-12

Other References: