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1. 发明专利

JPS6099758A ANTI-SKID CONTROL DEVICE 失效
公开(公告)号：JPS6099758A
公开(公告)日：1985-06-03
申请号：JP19861584
申请日：1984-09-25
申请人： NISSAN MOTOR
发明人： MATSUDA TOSHIROU , HONDA MINORU
IPC分类号： B60T8/66 , B60T8/1761
摘要： PURPOSE:To appropriately control the skid of wheels, by decreasing the brake hydraulic pressure until the variation rate of a wheel slip signal reaches the lower limit of a predetermined range from the time when the variation rate becomes higher than the upper limit of the predetermined range, and as well by increasing the brake hydraulic pressure until the variation rate reaches the upper limit of the predetermined range from the time when the variation rate becomes below the lower limit of the predetermined range. CONSTITUTION:When the brake hydraulic pressure increases, a slip rate signal from a slip rate detecting device 3 is increased, and when the variation rate of a variation rate detector 4 reaches a predetermined value h1, the output of a comparator 5 becomes H. Further, the output of a comparator 7 becomes L and an AND gate 11 becomes H so that an instruction for decreasing the brake pressure is issued. If the decrease of the brake hydraulic pressure is lasted, the slip rate becomes maximum, and starts to decrease thereafter. When the variation rate of the slip rate becomes negative due to an increase in the brake hydraulic pressure and less than a predetermined value h2, the output of the comparator 7 becomes H and the output of the AND gate 11 becomes L so that an instruction for increasing the brake pressure is issued. When the variation rate of the slip rate reaches the predetermined value h1, the decreasing pressure mode is set up, and therefore the above-mentioned operation is repeated.

2. 发明专利

JPS577747A ANTISKID CONTROLLER 失效
公开(公告)号：JPS577747A
公开(公告)日：1982-01-14
申请号：JP8212280
申请日：1980-06-19
申请人： NISSAN MOTOR
发明人： MATSUDA TOSHIROU , HONDA MINORU
IPC分类号： B60T8/72 , B60T8/172 , B60T8/1763
摘要： PURPOSE:To properly detect a timing to obtain the maximum brake efficiency and make the deceleration curve of wheels constant even if the condition on the road surface may be changed, by reducing the rate in increase of brake oil pressure in response to deceleration of wheels. CONSTITUTION:A reference signal generating circuit 1 gives output of reference signal er in triangular wave, and transmits this signal together with wheel deceleration signal alphaW to a comparator 3. A slip rate discriminating circuit 4 discriminates whether the slip rate is larger or smaller than the slip rate which provides the maximum brake efficiency. A skid controller 5 gives output of V1, V2 signals, and logical circuits 6, 7, 8, 9, 10 generate signals E1, E2 to drive a hydraulic regulator 11 on the basis of each signal. Since the oil pressure increase rate is contrived to be decreased in response to the increase of the wheel deceleration. When the brake oil pressure increases, high accuracy control can be provided to obtain the maximum brake efficiency even if the deceleration is changed.

3. 发明专利

JPS56154355A ANTI-SKID CONTROLLER 失效
公开(公告)号：JPS56154355A
公开(公告)日：1981-11-28
申请号：JP5426680
申请日：1980-04-25
申请人： NISSAN MOTOR
发明人： MATSUDA TOSHIROU , HONDA MINORU
IPC分类号： B60T8/72 , B60T8/172 , B60T8/1763
摘要： PURPOSE:To surely preset a braking target even for the increase of coefficient of friction during braking operation, by presetting a new linear braking target when speed of a wheel reaches a straight line below the linear braking target. CONSTITUTION:A speed signal Vw from an f/V converter 3 is differentiated by a decelerated speed detector 4 and converted into a wheel decelerated speed signal alphaw. The decelerated signal alphaw is compared with a prescribed value alphab in a comparator 6 and differntiated by a differentiating circuit 6, and a signal eb is output when exceeding the prescribed value. A linear target generator circuit 7, on the basis of said signal eb, outputs a linear target vo, and a converter 8 multiplies constant K to the above target, while a comparator 9 compares said value with the wheel speed Vw to reset RS-SS11 through a differentiator 10. A skid control unit 15 outputs a control signal for brake oil pressure by those from an AND gate 12, operated by outputs of RS-FF11 and the comparator 9, and a signal ea output from a comparator 13 and differentiator 14 which compare the wheel decelerated speed alphaw with a prescribed value -alphaa.

4. 发明专利

JPS5679042A ANTISKID CONTROLLING APPARATUS 失效
公开(公告)号：JPS5679042A
公开(公告)日：1981-06-29
申请号：JP15357879
申请日：1979-11-29
申请人： NISSAN MOTOR
发明人： KUBO JIYUN , HONDA MINORU
IPC分类号： B60T8/70 , B60T8/172 , B60T8/1763
摘要： PURPOSE:To make the antiskid control possible according to the actual ground conditions in the system that determines the wheel velocity aimed by braking at every time when the wheel deceleration attains a set deceleration, by changing the set deceleration according to a deceleration during braking. CONSTITUTION:A vehicle velocity Vc detected at a vehicle velocity detecting circuit 1 employing a doppler radar and others is differentiated at a vehicle deceleration generating circuit 2 to obtain a vehicle deceleration +alphac during braking. A wheel velocity Vw during braking detected at a wheel velocity detecting circuit 3 is deferentiated at a wheel acceleration and deceleration generating circuit 4 to obtain a wheel acceleration or deceleration + or -alphaw. These outputs +alphac, + or -alphaw are inputted into a discerning circuit 5 to change by +alphac wheel acceleration and deceleration set values -alphaA, +alphaB that has been previously set. By discerning the time when the output + or -alphaw of the wheel acceleration and deceleration generating circuit 4 becomes the set changing value, one of controlling signals e1-e4 for adjusting the braking hydraulic pressure is inputted into a valve controlling circuit 7.

5. 发明专利

JPS5675240A ANTISKID CONTROL DEVICE 失效
公开(公告)号：JPS5675240A
公开(公告)日：1981-06-22
申请号：JP14944979
申请日：1979-11-20
申请人： NISSAN MOTOR
发明人： MATSUDA TOSHIROU , HONDA MINORU
IPC分类号： B60T8/72 , B60T8/172 , B60T8/1763
摘要： PURPOSE:To make the command wheel speed for the initial period of brake application more proper and accurate by determining the command wheel speed for brake application from the value of wheel speed, sensed off at the initial period of brake application, multiplied by a certain predetermined coefficient. CONSTITUTION:A value obtained by multiplying wheel speed VW1 at the time of commencement of brake application by a coefficient 0.85, determined from the slip factor of approx. 15%, is sampled and held by a sample/hold circuit 10, and a value (VW1-VW2) obtained from the value of 0.85VW1 at the time of brake application and the value VW2 being retained by the sample/hold circuit 11 or 12, whichever preceding, is output from a substractor 13, and further the gradient of command wheel speed for brake application VW0 is calculated and output by a divider 17. Accordingly, the command wheel speed for brake application in accordance with the actual road condition can be set even for a skid cycle at the initial period of brake application, when sensing the wheel speed for the purpose of determination of the command wheel speed for brake application is not yet completed, that ensures well the performance of skid control following the variation of the actual road condition even from the time the skid control is just commenced.

6. 发明专利

JPS62214043A ANTISKID CONTROL DEVICE 失效
公开(公告)号：JPS62214043A
公开(公告)日：1987-09-19
申请号：JP5496086
申请日：1986-03-14
申请人： NISSAN MOTOR
发明人： HONDA MINORU
IPC分类号： B60T8/66
摘要： PURPOSE:To avoid a wheel from its hazard where the wheel is left as being locked, by setting a false car body speed signal to a wheel control part on the basis of a separately obtained estimated car body speed when a false car body speed remarkably decreases. CONSTITUTION:Wheels 11, 12 are synchronized slowly toward a locked condition, and when a false car body speed S4 remarkably decreases, a switching signal S12 selects an estimated car body speed Vc' in a car body speed selector circuit 28. In this way, the false car body speed signal S4 to wheel condition discriminating circuits 30, 32 is generated on the basis of the estimated car body speed Vc'. This estimated car body speed Vc' is calculated corresponding to deceleration of a vehicle from an average speed of the both wheels 11, 12, and control signals S10, S11 by the calculation are held to a level such that a brake fluid pressure of the corresponding wheels 11, 12 is continuously decreased. Accordingly, the wheels 11, 12 can be prevented from being left as locked.

7. 发明专利

JPS6159942B2 失效
公开(公告)号：JPS6159942B2
公开(公告)日：1986-12-18
申请号：JP8909380
申请日：1980-07-02
申请人： NISSAN MOTOR
发明人： HONDA MINORU , MATSUDA TOSHIRO
IPC分类号： B60T8/70 , B60T8/172 , B60T8/1764 , B60T8/72

8. 发明专利

JPS57121956A Anti-skid controller 失效
标题翻译：防滑控制器
公开(公告)号：JPS57121956A
公开(公告)日：1982-07-29
申请号：JP718581
申请日：1981-01-22
申请人： Nissan Motor Co Ltd
发明人： MATSUDA TOSHIROU , HONDA MINORU
IPC分类号： B60T8/58 , B60T8/172 , B60T8/1763 , B60T8/1764
CPC分类号： B60T8/17633
摘要： PURPOSE:To enable disconnection of a skid control which provides for a maximum braking efficiency if a road is suddenly changed to rise at a steep slope mu, by offering such capability that if a road condition is changed from a road face of a gentle slope mu to the steep slope mu while a wheel speed is being recovered, the recovery of the speed may be restrained to a speed of a slip ratio which is a little lower than a value at which a braking efficiency may be maximum. CONSTITUTION:A wheel acceleration detector 1 detects a wheel acceleration speed alphaw and outputs it to comparators A1-A4. A peak hold circuit 2 detects an acceleration speed peak level alpha'max and generates outputs beta1, beta2 of a certain ratio. The beta1 should be lower than the beta2. Comparator A2, A4 compare those outputs with the wheel acceleration speed, respectively. When the wheel speed gets lower than the output beta2, a braking horsepower holding signal is generated and when the speed gets lower than the output beta1, a power reintensifying signal is generated. If a road slope mu may be suddenly increased, recovery of the wheel speed may be restrained. Thereby, the maximum braking efficiency may be obtained.
摘要翻译：目的：如果道路突然改变为陡坡坡度上升，则能够断开滑坡控制装置的最大制动效率，提供如果道路状况从平缓坡度mu的道路面改变的能力到陡坡mu，同时车轮速度恢复，速度的恢复可以被抑制到比制动效率可能最大的值稍低的滑移率的速度。构成：车轮加速度检测器1检测车轮加速速度，并将其输出到比较器A1-A4。峰值保持电路2检测加速度速度峰值电平α'max并产生一定比例的输出β1，β2。 beta1应低于beta2。比较器A2，A4分别将这些输出与车轮加速度进行比较。当车轮速度低于输出β2时，产生制动马力保持信号，当速度低于输出β1时，产生功率再生信号。如果道路坡度mu可能突然增加，则可能会抑制车轮速度的恢复。由此，可以获得最大的制动效率。

9. 发明专利

JPS56142737A ANTISKID CONTROL DEVICE 失效
公开(公告)号：JPS56142737A
公开(公告)日：1981-11-07
申请号：JP4574280
申请日：1980-04-09
申请人： NISSAN MOTOR
发明人： MATSUDA TOSHIROU , HONDA MINORU
IPC分类号： B60T8/72 , B60T8/172 , B60T8/1764
摘要： PURPOSE:To obtain a skid control of driving wheel which shall work even when the target brake linearity is not attained by setting the wheel speed at nondriven wheels as braking target until the target linearity is attained. CONSTITUTION:The signal from a nondriven wheel 1A is converted into a voltage signal by a f-V converter 3A and input into a target value generator circuit 4, and is transmitted to an analogue switch S2. When the target value generator circuit 4 outputs the target braking linearity, an eb signal is also emitted, so that an RS flip-flop 5 is reset and an analogue switch S1 is actuated to output the target braking linearity for a skid controller part 6. When no target braking linearity is emitted, the speed signal of the nondriven wheel is transmitted to the skid controller part through the analogue switch S2, so that a skid owing to overworking of the brake at the driving wheels only is prevented.

10. 发明专利

JPS56135358A ANTISKID CONTROLLER 失效
公开(公告)号：JPS56135358A
公开(公告)日：1981-10-22
申请号：JP3694880
申请日：1980-03-25
申请人： NISSAN MOTOR
发明人： MATSUDA TOSHIROU , HONDA MINORU
IPC分类号： B60T8/66 , B60T8/172 , B60T8/1763
摘要： PURPOSE:To reduce a skid cycle time extending unitl a command providing the maximum braking efficiency is obtained by a method wherein the skid is controlled by the command preset in accordance with a road surface of low friction, during the period from the time when braking is started to the time when the braking command is obtained. CONSTITUTION:When the braking is started, a braking oil pressure PW is increased and a wheel velocity VW is decelerated with reference to a vehicle velocity VG so as to increase a slip factor. When time t1 is reached, a wheel deceleration alphaW reaches to a preset deceleration alphab and eb-signal is outputted from a comparing circuit 5. In response to the eb-signal, a sampling and hold circuit 6 samples the wheel velocity VW1 at time t1, holds it and then feeds it to an arithmetically operating circuit 7. In addition, when the eb-signal is generated, an integration circuit 10 generates an integration output which becomes a ramp voltage waveform increasing at time t1 at an inclination in accordance with the low friction roard surface, while a subtracting circuit 11 generates a command VW0 decreasing from the wheel velocity VW1 at an inclination in accordance with the low-mu road surface. Based on this signal, an oil- pressure controlling part 13 is controlled through a skid controlling part 12.

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