JPS63115548U

JPS63115548U -

Info

Publication number: JPS63115548U
Application number: JP692387U
Authority: JP
Priority date: 1987-01-22
Filing date: 1987-01-22
Publication date: 1988-07-26

Description

[Brief explanation of the drawing]

第１図は本考案トラクシヨンコントロール装置
の一実施例を示す全体システム図、第２図は同装
置における擬似車速発生回路の電子回路図、第３
図は同装置におけるモータの正転量に対するスロ
ツトル開度の変化特性図、第４図は同装置におけ
るスロツトル開度制御系の各部電圧変化を示すタ
イムチヤート、第５図は第１図の装置における設
定値変化特性図、第６図は第２図に示す擬似車速
発生回路の動作タイムチヤート、第７図及び第８
図は夫々第１図に示す装置の動作タイムチヤート
、第９図は本考案の他の例を示す要部システム図
、である。１Ｌ，１Ｒ，２Ｌ，２Ｒ……駆動輪、４……エ
ンジン、５……変速機、７……トランスフア装置
、８，９……デイフアレンシヤルギヤ、１０，１
２……セレクトロースイツチ、１１……比較器、
１３……設定値変更手段（切換スイツチ）、１５
……ＯＲゲート、１６，１７……ＡＮＤゲート、
１８〜２０……比較器、２１ａ〜２１ｄ……車輪
回転センサ、２２ａ〜２２ｄ……車輪速演算回路
、２３……車輪加速度演算回路、２４……減算器
、２５……擬似車速発生回路、４２……スロツト
ルバルブ、４３……アクセルペダル、４４……減
速機、４５……モータ、４６，４７……リレー、
４８〜５０，５２，５３……トランジスタ、５１
，５５……比較器、５４……ＮＡＮＤゲート、５
６……ロータリエンコーダ、５７……スロツトル
開度検出回路、５８……アクセル開度センサ、６
１……割算器（変速比情報検出手段）、６２……
エンジン回転センサ、６３……平均値演算回路、
６４……ギヤ位置センサ（変速比情報検出手段）
。 Fig. 1 is an overall system diagram showing one embodiment of the traction control device of the present invention, Fig. 2 is an electronic circuit diagram of a pseudo vehicle speed generating circuit in the same device, and Fig. 3
The figure is a characteristic diagram of changes in throttle opening with respect to the amount of normal rotation of the motor in the same device, Figure 4 is a time chart showing voltage changes at various parts of the throttle opening control system in the same device, and Figure 5 is a diagram of changes in the throttle opening in the device shown in Figure 1. Set value change characteristic diagram, Figure 6 is an operation time chart of the pseudo vehicle speed generation circuit shown in Figure 2, Figures 7 and 8 are
The figures are an operation time chart of the apparatus shown in FIG. 1, and FIG. 9 is a main system diagram showing another example of the present invention. 1L, 1R, 2L, 2R... Drive wheel, 4... Engine, 5... Transmission, 7... Transfer device, 8, 9... Differential gear, 10, 1
2...Select low switch, 11...Comparator,
13...Setting value changing means (switch switch), 15
...OR gate, 16,17...AND gate,
18-20...Comparator, 21a-21d...Wheel rotation sensor, 22a-22d...Wheel speed calculation circuit, 23...Wheel acceleration calculation circuit, 24...Subtractor, 25...Pseudo vehicle speed generation circuit, 42 ... Throttle valve, 43 ... Accelerator pedal, 44 ... Reducer, 45 ... Motor, 46, 47 ... Relay,
48-50, 52, 53...transistor, 51
, 55... comparator, 54... NAND gate, 5
6... Rotary encoder, 57... Throttle opening detection circuit, 58... Accelerator opening sensor, 6
1... Divider (gear ratio information detection means), 62...
Engine rotation sensor, 63...average value calculation circuit,
64...Gear position sensor (gear ratio information detection means)
.

Claims

[Claim for Utility Model Registration] During acceleration in which all wheels are driven by the engine, the rotation information of all wheels is compared with a set value to determine wheel spin, and when wheel spin occurs, the power of the engine is reduced to prevent wheel spin. In a traction control device for an all-wheel drive vehicle having a direct all-wheel drive state, the rotational speed of the engine in the direct all-wheel drive state,
Gear ratio information detection means for obtaining information regarding the ratio to the average rotational speed of all wheels, and the gear ratio information obtained from the means increases the set value in an area indicating a low vehicle speed range, and increases the set value in an area indicating a high vehicle speed range. A traction control device for an all-wheel drive vehicle, comprising set value changing means for reducing the set value.