CN-122026751-A - Brushless direct current motor driving circuit for intelligent knob hand feeling control and analysis method thereof

CN122026751ACN 122026751 ACN122026751 ACN 122026751ACN-122026751-A

Abstract

The invention discloses a brushless direct current motor driving circuit for intelligent knob hand feeling control and an analysis method thereof, wherein the brushless direct current motor driving circuit comprises a motor control chip, an eighteenth pin of the motor control chip is electrically connected with a capacitor C46, the capacitor C46 is connected with an electrolytic capacitor EC5 in parallel, the capacitor C46 is connected with a capacitor C47 in parallel, a thirty-third pin of the motor control chip is electrically connected with an inductor FB3, a capacitor C50 is electrically connected between the inductor FB3 and the thirty-third pin, the capacitor C50 is connected with a capacitor C48 in parallel, the inductor FB3 is electrically connected with a capacitor C51, a thirty-fifth pin of the motor control chip is electrically connected with a capacitor C53 in parallel, the capacitor C53 is connected with a capacitor C52 in parallel, a first pin of the motor control chip is electrically connected with a resistor R88, and a resistor R85 is electrically connected between the resistor R88 and the first pin. The invention can be suitable for driving and controlling the brushless direct current motor with the hand feeling of the intelligent knob, and the brushless direct current motor controls the torque, breaks through the limit of a mechanical structure and realizes highly customized and dynamically adjustable interaction experience.

Inventors

HUANG LIANGLIANG
Cao Deyou
Zhou Chuizhou
XIA ZHUNCHUN
CHEN XUANXIN
WANG HAIYAN
HAN ZENGZHI

Assignees

浙江长江汽车电子有限公司

Dates

Publication Date: 20260512
Application Date: 20260206

Claims (6)

1. A brushless direct current motor driving circuit for intelligent knob hand feeling control comprises a motor control chip and is characterized in that an eighteenth pin of the motor control chip is electrically connected with a capacitor C46, an electrolytic capacitor EC5 is connected in parallel with the capacitor C46, a thirty-third pin of the motor control chip is electrically connected with an inductor FB3, a capacitor C50 is electrically connected between the inductor FB3 and the thirty-third pin, the capacitor C50 is connected with a capacitor C48 in parallel, the inductor FB3 is electrically connected with a capacitor C51, a thirty-fifth pin of the motor control chip is electrically connected with a capacitor C53, the capacitor C53 is connected with a capacitor C52 in parallel, a first pin of the motor control chip is electrically connected with a resistor R88, a resistor R85 is electrically connected between the resistor R88 and the first pin, a resistor R89 is electrically connected with a resistor R86 between the resistor R89 and the second pin, a thirty-sixth pin of the motor control chip is electrically connected with a capacitor C56, the capacitor C54 is connected in parallel with the capacitor C56, a fifteenth pin of the motor control chip is electrically connected with a capacitor C48, the motor control chip is electrically connected with a capacitor C49, a thirty-fifth pin of the motor control chip is electrically connected with a capacitor C95, a resistor R58 is electrically connected with a resistor R88, and a twenty-fifth pin of the motor control chip is electrically connected with a resistor R95, and a resistor R95 is electrically connected with a resistor R95.
2. The brushless direct current motor driving circuit for intelligent knob hand feeling control according to claim 1, wherein a fifth pin of the motor control chip is electrically connected with a resistor R90, a sixth pin of the motor control chip is electrically connected with a resistor R92, a seventh pin of the motor control chip is electrically connected with a resistor R93, and an eighth pin of the motor control chip is electrically connected with a resistor R94.
3. The brushless direct current motor driving circuit for intelligent knob hand feeling control according to claim 1 or 2, wherein the motor control chip model is FU6881Q1, the chip is integrated with an MCU, a MOS driver and a half bridge, and the chip comprises an operational amplifier, a comparator, a built-in high voltage LDO and a LIN.
4. A brushless dc motor driving circuit for intelligent knob touch control according to claim 3, wherein capacitor C46 is grounded, capacitor C50 is grounded, capacitor C51 is grounded, and capacitor C53 is grounded.
5. The brushless dc motor driving circuit for intelligent knob touch control according to claim 4, wherein the capacitor C46 is grounded, the capacitor C60 is grounded, and the resistor R97 is grounded.
6. The method for analyzing the brushless direct current motor driving circuit for intelligent knob hand feeling control according to claim 1, comprising the steps of: s1, torque analysis of intelligent knob hand feeling control; s2, determining a hand feeling curve function of the intelligent knob; s3, a brushless direct current motor control flow and a model; S4, performing operation analysis on CLARKE and PARK; s5, performing operation analysis on anti-CLARKE and anti-PARK; S6, SVPWM operation analysis.

Description

Brushless direct current motor driving circuit for intelligent knob hand feeling control and analysis method thereof Technical Field The invention relates to the technical field of brushless direct current motors, in particular to a brushless direct current motor driving circuit for intelligent knob hand feeling control and an analysis method thereof. Background Traditional mechanical knobs provide operational feedback to the user through physical structures (e.g., damping grease, ratchets, springs, etc.), such as damping feel, graduation feel, limit feel, etc., which are critical to accurate operation and user experience. However, once the mechanical structure is determined, the hand feeling of the mechanical structure is fixed, and the mechanical structure cannot adapt to different application scenes or user preferences. There are some electric knob schemes in the prior art that use stepper motors or common dc motors in combination with clutches in an attempt to simulate a variable hand feel. However, the stepping motor is easy to generate vibration and noise at low speed, torque control is discontinuous, and the scheme of matching the common direct current motor with a mechanical structure has the problems of slow response, complex structure, difficult simulation of fine touch feeling and the like. Disclosure of Invention The invention overcomes the defects of the prior art, and provides a brushless direct current motor driving circuit for intelligent knob hand feeling control, which can be adapted to drive and control a brushless direct current motor for intelligent knob hand feeling, and the brushless direct current motor controls torque, breaks the limit of a mechanical structure and realizes highly customized and dynamically adjustable interactive experience. In order to achieve the above purpose, the present invention provides the following technical solutions: A brushless direct current motor driving circuit for intelligent knob hand feeling control comprises a motor control chip, wherein an eighteenth pin of the motor control chip is electrically connected with a capacitor C46, an electrolytic capacitor EC5 is connected in parallel with the capacitor C46, a thirty-third pin of the motor control chip is electrically connected with an inductor FB3, a capacitor C50 is electrically connected between the inductor FB3 and the thirty-third pin, the capacitor C50 is connected with a capacitor C48 in parallel, the inductor FB3 is electrically connected with a capacitor C51, a thirty-fifth pin of the motor control chip is electrically connected with a capacitor C53, the capacitor C53 is connected with a capacitor C52 in parallel, a first pin of the motor control chip is electrically connected with a resistor R88, a resistor R85 is electrically connected between the resistor R88 and the first pin, a second pin of the motor control chip is electrically connected with a resistor R89, a resistor R86 is electrically connected between the resistor R89 and the second pin, a thirty-sixth pin of the motor control chip is electrically connected with a capacitor C56, the capacitor C56 is connected with a capacitor C54 in parallel, a fifteenth pin of the motor control chip is electrically connected with a capacitor C49, the capacitor C thirty-third pin of the motor control chip is electrically connected with a capacitor C87, a thirty-fifth pin of the motor control chip is electrically connected with a resistor R95, a resistor R95 is electrically connected with a resistor R95, and a twenty-third pin of the motor control chip is electrically connected with a resistor R95, and a twenty-third pin is electrically connected with a resistor R95. Preferably, the fifth pin of the motor control chip is electrically connected with a resistor R90, the sixth pin of the motor control chip is electrically connected with a resistor R92, the seventh pin of the motor control chip is electrically connected with a resistor R93, and the eighth pin of the motor control chip is electrically connected with a resistor R94. Preferably, the model of the motor control chip is FU6881Q1, MCU, MOS driver and half bridge are integrated in the chip, and the operational amplifier, comparator, built-in high-voltage LDO and LIN are contained in the chip. Preferably, capacitor C46 is grounded, capacitor C50 is grounded, capacitor C51 is grounded, capacitor C53 is grounded, and capacitor C56 is grounded. Preferably, the capacitor C46 is grounded, the capacitor C60 is grounded, and the resistor R97 is grounded. The invention also provides an analysis method of the brushless direct current motor driving circuit for controlling the hand feeling of the intelligent knob, which comprises the following steps: s1, torque analysis of intelligent knob hand feeling control; s2, determining a hand feeling curve function of the intelligent knob; s3, a brushless direct current motor control flow and a model; S4, performing operation analysis on CLARKE and PARK; s5, perf